My latest side project is a randomizer application for the board game Sentinels of the Multiverse.
You can grab the app here: https://play.google.com/store/apps/details?id=com.idunnolol.sotm
You can check out the source here: https://github.com/dlew/android-sotm
I have to admit that writing it was a gigantic waste of time (the benefit isminusculein comparison to the time it took to write). However, it was a ton of fun to make; there's something very liberating about writing an app from scratch with no baggage to worry about. It was also liberating to write an app that uses modern APIs with complete disregard to backwards compatibility. As such, it's only available on ICS+.
In other news, I will be at Google I/O again this week. In particular I will be helping man Expedia's booth in the Android sandbox; feel free to come by and say hello.