apart from a gui framework, I'm also working on a corona sdk game framework.
I created a simple game (which I created a few times before) to test it.
I want to test it some more and port picking sticks (another hello world game), and maybe make a pong clone too.
after that when I'm sure my framework works well I will create a few tutorials for it. it's basically the same as my java slick2d and phaser js based frameworks. that's also why it was so easy for me to port clicking stars to corona. check my github for those if you're interested. a mod told me they don't like links to things unrelated to corona.