Friye said:
Sorry, but I don't think android devices have the kind of provessing power required to do great quality image stuff except if they're specifically made for that stuff.
Other than Autodesk Sketchbook, there's a few out there you can find in easy lists simply by googeling "drawing app android" or "best art app android" or something like that. I tried them though and I found none to my liking. Then again, my android devices were never specifically designed for anything artsy.
Man, I would love some (simple) 3D rendering software for Android, on that note. I spend way too much time on my phone for that not to be useful.