Spring Cleaning 2014

It’s a new year – which means it’s time to find a new home for items that have gone unused for too long.

These A-mount lenses are in mint condition and come in original box:

Sony SAL24F20Z 24mm f/2.0 Wide Angle Lens with VF-72MPAM filter – $1300
Sony SAL70200G 70-200mm f/2.8 SSM Lens with VF-72MPAM filter – $1800
Sony SAL50M28 50mm f/2.8 Macro Lens with VF-55MPAM filter – $500

Bags (the first two have each seen daily use for ~1.5 years and the other three have seen little use):

Maxpedition Mongo Versipack (Foliage) – $100 SOLD
WaterField 13″ Laptop Muzetto (Green accent) – $140
Case Logic SLRC-206 SLR Camera and 15.4-Inch Laptop Backpack (Black) – $50 SOLD
Think Tank Retrospective 20-Pinestone Tall Shoulder Bag $150
Lowepro SlingShot 100 Camera Backpack (Black) – $45

Speakers:

Libratone Live AirPlay speaker (Grey) – $300 SOLD
Sonos ZonePlayer S5 (White) – $300 SOLD
Sonos ZonePlayer S5 (Black) – $300 SOLD
Sonos Remote Control (needs new battery) – $200 or free with purchase of both S5 units SOLD

Misc electronics:

iPhone 5 White 32GB (Verizon, ND144LL/A) – $400
Nest Learning Thermostat 1st Gen – $125 SOLD
Apple USB SuperDrive – $50
Xbox 360 4GB Kinect – $150 SOLD

Local pickup in downtown San Francisco only.

Amplify your music with MagicPlay and the Raspberry Pi

MagicPlay is an open cross-platform audio streaming standard (think “HTTP for music”) that supports synchronized streaming to multiple speakers (like Sonos). For more details, see this Verge story. In the near future you’ll be able to buy WiFi speakers, TVs and other products that come with MagicPlay support out of the box. If you want to try MagicPlay right now, you can turn an existing device such as the Raspberry Pi into a MagicPlay device and stream music to it using doubleTwist Music Player for Android.

Prerequisites:

If you would like to skip building the source code, you can download a binary package instead.

1. Download the AllJoyn source code (AllJoyn is a P2P framework developed by Qualcomm to power the Internet of Things).
2. Unzip the AllJoyn code: tar -zxvf alljoyn-3.3.0-src.tgz; cd alljoyn-3.3.0-src
3. Clone the following two repositories:

4. Apply this patch: zcat magicplayd.diff.gz | patch -p0
5. Build AllJoyn library: make OS=linux CPU=armhf VARIANT=release
6. Build and install audio service: cd services/audio; make CPU=armhf; sudo make CPU=armhf install

The MagicPlay service (/etc/init.d/magicplayd) has now been installed and will automatically start on boot.

Note that if you want to use a USB sound card with MagicPlay on the Raspberry Pi, you will need to modify services/audio/src/posix/ALSADevice.cc prior to step #7 and replace “plughw:0,0″ with “plughw:1,0″ and “hw:0″ with “hw:1″ (since the USB sound card would be sound card #2).

To get beta builds of doubleTwist Music Player for Android, make sure to join the doubleTwist Google Plus community.

The setup pictured below includes a LP-2020A+ Lepai amplifier ($20) and Micca MB42 speakers ($50).

RaspberryPi-MagicPlay

MagicPlay1MagicPlay2

Too many gadgets…

I’m selling some gadgets that are collecting dust. Local pickup in SF only (but happy to hold an item for you if you’ll be in town in the next few weeks).

Apple iPad 2 16GB WiFi-only: $425 SOLD
Comes in original box with charger and cable
Mint condition – 4 months old, only lightly used approx. 2 hours/week

Apple iPad 16GB WiFi-only: $300 SOLD
Comes with charger and cable
Good condition – used up until I got the iPad 2

iPhone 4 16GB Factory Unlocked: $500 SOLD
Comes with charger and cable
Good condition – has minor scratches on the back as hiding the shiny with hideous cases is sacrilege

Samsung Galaxy Tab 10.1″ 16GB (Google I/O Limited Edition): $450 CLAIMED
Comes in original box with charger, cable and (unused) earphones
Mint condition – less than 10 hours total use

Samsung Series 5 3G Chromebook (Arctic White): $350 SOLD
Chromebook + charger + VGA adapter
Mint condition – only used once

Samsung SCH-LC11 4G Mobile Hotspot (Verizon Wireless): $175 (or $125 if purchased with iPad or Galaxy Tab).
New in box

Sony A700 body w/VG-C70AM Vertical Grip: $700 SOLD
Includes two original Sony batteries and USB cable
Good condition

The Men Who Stole the World

A decade ago, four young men changed the way the world works. They did this not with laws or guns or money but with software: they had radical, disruptive ideas, which they turned into code, which they released on the Internet for free. These four men, not one of whom finished college, laid the foundations for much of the digital-media environment we currently inhabit. Then, for all intents and purposes, they vanished.

Full article in TIME

Google’s mismanagement of the Android Market

Earlier this week, CNET ran an article critical of the permission model of the Android Market. Google’s response to the criticism was that “each Android app must get users’ permission to access sensitive information”. While this is technically true, one should not need a PhD in Computer Science to use a smartphone. How is a consumer supposed to know exactly what the permission “act as an account authenticator” means? The CNET opinion piece “Is Google far too much in love with engineering?” is quite relevant here.

Google does far too little curation of the Android Market, and it shows. Unlike Apple’s App Store, the Android Market has few high quality apps. A study by Larva Labs (the developers of the excellent Slidescreen app) estimates that Apple has paid out 50 times more money to developers than Google has. While the Android Market is available in 46 countries, developers can only offer paid apps in 13 countries (for instance, Canada has only had access to paid apps since March 2010). In addition, the price for foreign apps is not displayed in the user’s local currency and developers do not have the option of customizing pricing by country. To make matters worse, you can’t pay for foreign apps using your Amex card or carrier billing. There’s also no support for in-app payments and changelogs (to communicate app changes).

Below are just a few examples of what’s wrong with the Android Market. Those 144 spam ringtone apps (which are clearly infringing copyright) are currently cluttering the top ranks of the Multimedia category. I was not surprised to find that they were being monetized through Google Ads.

Trademark and copyright infringement is widespread in the Android Market:

The music downloading app “Tunee” (one of many such apps) is one of the Top Free apps in the Multimedia category with more than 250k downloads. While some would dishonestly try to pretend that such apps are meant for downloading public domain classical music, the developers of Tunee are very clear about their intent. Their screenshot shows copyrighted music by the band Muse (Warner Music Group) being illegally downloaded.

These apps are damaging to companies that are building legitimate Android music apps (e.g Rdio, Spotify and MOG), not to mention Amazon whose MP3 store comes bundled with most Android phones in the U.S. Is Google’s strategy to turn a blind eye to illegal music downloading until they launch their own music store?

Developers and users are getting fed up and it’s time for Google to clean up the house.

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Steve Jobs admits iTunes for Windows is a sub-standard app

In defending recent changes to the iPhone SDK agreement, Steve Jobs made a general argument about platforms:

We’ve been there before, and intermediate layers between the platform and the developer ultimately produces sub-standard apps and hinders the progress of the platform.

Since iTunes for Windows uses non-native APIs such as CoreFoundation and CoreGraphics, Steve Jobs is effectively calling iTunes for Windows a sub-standard app.

Is iTunes hindering the progress of the Windows platform by not taking advantage of the latest native Windows APIs? By Steve’s logic, Microsoft should start banning apps such as iTunes from Windows.

iTunes for Windows DLLs

Kernel 2.6.32 for your Nexus One

Unlike the locked down and user-hostile iPhone, the Google Nexus One is not SIM-locked (even when bought subsidized) and ships with a bootloader that can be unlocked to enable custom firmware flashing. More importantly, you can use the Nexus One to make calls that last longer than 10 seconds :)

The Nexus One ships with a 2.6.29 kernel but if you like living on the bleeding edge you can install your own kernel (e.g. the experimental 2.6.32 kernel). Below you’ll find an update image I built which includes a 2.6.32 kernel, su, scp and ssh.

Steps to unlock your Nexus One bootloader and install your own firmware:

  • Verify USB debugging is turned on in your Nexus One settings (Applications -> Development).
  • Install the Android SDK and fastboot.
  • Power off your Nexus One. Hold down the trackball and power the device back on.
  • Run ‘fastboot oem unlock’ and then follow the instructions on the device.
  • Download Amon_RA’s custom recovery image for the Nexus One.
  • Run ‘fastboot flash recovery recovery-RA-nexus-v1.5.3.img’ and then reboot your Nexus One.
  • Copy nexus-2.6.32-root-signed.zip to your Nexus One SD-card and then run ‘adb reboot recovery’.
  • Once the device boots into Android system recovery, select “Flash zip from sdcard” and then nexus-2.6.32-root-signed.zip.

With root on your Nexus One, you can use apps such as n1torch (use your Nexus One camera flash as a flashlight).

Note that for security reasons you may want to replace the standard su with something like superuser.

Btw, my company, doubleTwist, is hiring engineers in San Francisco and Android experience is a plus. Perks include a doubleTwist engraved Nexus One :)

Pogue and Mossberg on doubleTwist

David Pogue in his Nexus One review last week:

The Nexus doesn’t come with any iTunes-style companion software, either. Enterprising techies know about the free DoubleTwist program for Mac or Windows, which simulates iTunes for the purposes of loading up your phone with music, photos and videos.

This week, Walt Mossberg in a follow-up to his Nexus One review:

Google doesn’t supply any equivalent to Apple’s iTunes or the BlackBerry media-syncing software. However, the third-party program doubleTwist, available at doubletwist.com, is designed to function as a sort of iTunes for syncing Android, Palm and BlackBerry devices.

What are you waiting for? Go download doubleTwist now and sync with your Nexus One :)