If you've wanted to see a neutral third party review and comparison of the Lua game development platforms available, the Game From Scratch blog has posted a "Battle of the Lua Game Engines" review covering Moai vs. Corona, LÖVE, and Gideros.

While Moai gets called out on being more difficult than some alternatives (as price for flexibility) and needing better documentation, the summary says it all:

"[Moai] supports the most targets of all the libraries, has complete source code, and more importantly, the source code is very well written and very easy to read."

"For a commercial product for iOS/Android, I would select Moai. The API is a natural fit to my coding style ( I prefer flexibility over accessibility for time critical code ) and the C++ source code is a great boon to me, but to a non-C++ programmer, this would obviously be less important. Also of course, the price is nice. Most importantly, the open nature means I know I will never encounter a problem that I can’t code my way out of, the biggest downside to Corona."

Thanks to Game From Scratch for a fair evaluation from a developer's perspective.