To be honest, C2 free edition is actually what made my payment <img src="smileys/smiley2.gif" border="0" align="middle" />
The Trial module of apps should be forbidden now, I'm kind of person that hate downloading something that might ended to uninstall, or bothered with pop up that telling me i should pay or how many days left this kind of irrespective for customers!!, with many options and free apps rising already, I'm afraid your idea might reflect badly on what scirra currently doing..
GameMaker also support lite version which made it so famous for many indie dev, i also recently heard rpg maker vx ace will support lite edition instead of trial module, this mean they noticed the now-day customers are more aware than yesterday, and their is too much competition at software markets with freebies support..