I’ve started playing with the Corona SDK just recently. It looks to be a great way to develop games for both iOS and android devices, and (as a bonus) relies on Lua. Finished a simple demo last night, where a player character responds to a screen touch by walking over to the point indicated, playing one of four different directional walk cycles.
The code isn’t the cleanest, but it’s enough to let me start to get a feel for the way Corona deals with sprite sheets. All of the art assets were lifted from Open Game Art- an awesome resource for game demos.