I posted my first game made with the corona sdk on the Android Market today
http://neatofun.blogspot.com/p/fire-frenzy.html
https://market.android.com/details?id=com.neatofun.firefrenzy&feature=search_result
the Iphone version will be submitted early next week and will have openfeint!
I had a blast using the corona sdk and plan to create many more apps with it in the future!