Android Location will be a revolutionary social mapping service to change the way people use mobile phones to keep in touch with their friends. It will facilitates real-world interaction between friends and puts an end to frustrating missed connections.

Using location-based technologies, Android Location lets you know where your friends are by automatically updating maps on your mobile handset. Android Location even lets you send messages to nearby friends or receive automatic alerts when they’re nearby so that you never miss an opportunity to meet. Android Location also lets you journal your life so that your friends can see what you’re up to. With Android Location, mobile subscribers put themselves on the map.

http://www.assembla.com/wiki/show/AndroidLocation

Manage is a file manager to do basic file operations like move, copy, delete etc.

http://code.google.com/p/manage/

The TrivialGPS is a small application that shows yours location plotted against a MapView in real time. It uses the mock location provider that ships with the Android SDK. The mock location provider simulates a drive in the bay area.

http://code.google.com/p/trivial-gps/

WikiNotes for Android, a wiki note pad that uses intents to navigate to wiki words and other rich content stored in the notes.

http://code.google.com/p/apps-for-android/

Android-GL contains a series of implementations of tutorials for OpenGL programming in the Google Android SDK.

It also contains some utilities that might be generally useful to other folks.

http://code.google.com/p/android-gl/

An app for Android intended to allow you to update your status in one simple place and have a set of different services updated.

http://code.google.com/p/statusinator/

Imagine your Android “cookbook” application tells you to buy eggs, ginger, and cardamom, your “birthday reminder” application suggests you to buy a blue tulip (for a friend who loves the color blue), and your computer at home notifies your mobile phone that the color cartridge of your printer is almost empty. Would you like to receive three notifications by three different programs next time you are close to a supermarket? Or rather have them all store that information in your central shopping list? (by the way, your internet auction application that watches the central shopping list has already found an interesting offer for that blue tulip…)

Imagine you have to specify for a handful of programs (the favorite “ring-tone selector” application, your “answering machine”, your “smart to-do list”, your “calendar”, your “work time log”, …) where your “home”, your “office”, “gym”, “music school”, etc. is located by specifying the latitude and longitude or the corresponding street address for each of these applications. Would you not rather have a central place for your favorite locations that all applications can easily share?

(Many more ideas can be found on our list of ideas)

Keep your one great idea a secret that could make you win the Android Developer Challenge, but share those obvious and common ideas that you encounter while implementing and that you think could be used in many other applications as well. We will develop the most-required components together (e.g. a central shopping list), so you can concentrate on implementing your core idea (e.g. the weight-watching cookbook) while having interoperability with many other great OpenIntents applications built in right from the start.

Join this project if you have great ideas to share or if you are a good developer and look for a low-risk project.

http://code.google.com/p/openintents/

Android instrumentations are powerful tools for automating android applications and make a nice fit for automated acceptance testing.

Positron provides an instrumentation and some support classes to help writing acceptance tests. It is provided as a jar that gets bundled with your application. Acceptance tests are written in junit, extending a custom base class.

http://code.google.com/p/android-positron/

DroidDraw is a graphical user interface (GUI) builder for the Android platform.

http://code.google.com/p/droiddraw/

Parallel Kingdom is an online medieval role playing game on a cell phone. Parallel Kingdom places the virtual world on top of the real world using the GPS inside your phone. Attack, dance, hug or team up with anyone around you. Set up trade routes, craft items or even create your own kingdom.

For all of those who want to keep updated, there is now a fresh blog along with a video.

http://www.blog.parallelkingdom.com/