I had to quickly give an update to Groovy Hearts keyboard controls, and while I was at it, I finished the android version of it. Both versions are playable right now. Here's the newgrounds version:
http://www.newgrounds.com/portal/view/676961
And here's the version on Google Play!
https://play.google.com/store/apps/details?id=com.GroovyVideoGames.GroovyHearts
Please try out both versions and leave some feedback!