I just finished developing my first Android application. It's called Grid Live Wallpaper.
It's a live wallpaper of 3D shapes aligned in a grid. You pick a wallpaper for each homescreen of your launcher, and the shapes rotate between them.
I decided not to get a job this summer, but to learn Android development instead. After 5 months of on/off work, I am finally finished and really excited to publish it! I hope you guys don't mind that I'm linking to a paid application, but it's as cheap as I could make it ($0.99), and I am trying to turn Android development into a viable job outside of school.
Please let me know what you think!