I've just transferred my game from Google Play services to App42, it's still work in progress, but I've released it on Google Play Store and as a Facebook app.
If you want to check it out here are the links.
Play Store: https://play.google.com/store/apps/details?id=com.doofah.pobble
All comments and suggestions are much appreciated
Edit: Oops! Just noticed the instruction menu hasn't been enabled. So to control Pobble on a phone/tablet you touch and hold the screen to make him float and release to let him descend. On a PC you use the SPACE bar.