I am currently learning more on Android development and for me the best way to learn something new is to try it out by myself. It’s the same when I learn new ways of programming: reading books and tutorials is fine, but when I try to build my own apps I learn even more.
So I decided to write a simple game for the Android platform, not that there aren’t already enough games in the Android Market, more because in the last weeks I mostly concentrated on developing games for the Vodafone mobile widget runtime. I made a game called “Space Janitor”, which I now want to port to the Android platform. I would like to extend the game at some points, i.e. making use of the device accelerometer sensors to move the spaceship to the left or to the right, or vibrating the mobile when being hit by an asteroid. That would be real fun.
Another good way to learn is to try to explain the things one learned to others. That was a great way to learn during my university time, because the professors always wanted to have something explained 
So if one already explained the learned things to others, it was no problem to explain it again to the professor. I now decided to keep track of my development by writing some blog posts about how to develop the game, thus explaing it to others. But I would also very much appreciate your comments on how to improve the quality and the speed of my code as I would call myself just a novice in Android programming. Maybe you’ve also got some more tipps for game improvement, game handling, gameplay, etc.
I will somewhat unregularly post new entries in my blog, so keep in touch.