I know you guys have your reasons for not implementing an Android version, but I really hope you'll reconsider and put more resources into this. Skritter is currently the only thing tying me to iOS. I would chuck my iPad and buy a Galaxy Note 2 today if you'd implement Skritter for it. 75% of smartphones shipping now use Android. Maybe a year ago, the market was different, but now, Android is in the ascendant.
http://mobilesyrup.com/2012/11/01/75-of-all-smartphones-shipped-in-q3-were-android/