I made physics based arcade game in which you are magnet and you have to avoid and destroy needles.
Game has also global leaderboard option.
More info and download (FREE):
https://play.google.com/store/apps/details?id=com.mawges.magneto
Looking forward for feedback 
screen:
qrcode:
It looks pretty fun. I donāt have an android to play it on 
Do you just have effect the needles movement to smash them, or accelerate them?
Also, you have grammar errors in your description (on the app page).
I just got an android yesterday as a matter of fact 
Iāll be playing your game in a matter of seconds, and Iāll give you some feedback.
By the way: Is there a guide around here for developing on Android that you recommend?
Look into LibGDX. Also look into Mario Zechnerās āBeginning Android Gamesā book
Yes, this book is good and I recommend libGDX cos I use it in all games, it is well documented and they have nice community.
Libgdx tutorials:
http://code.google.com/p/libgdx-users/wiki/TutorialList
@aazimon
You have to accelerate them and then let they smash on wall
Just downloaded and played for a bit, ran great on my motorola electrify, I like that you have multiple control options, but I would like to use a virtual joystick. perhaps one that was created on touch down, that way it would not obstruct your viewā¦
Anyway its a cool little gameā¦