Support for Command Line (thus Continuous Integration) builds
We run a tight ship at my company. Code is unit tested, and upon check-in to version control, the code is tested and built into a last-good-build. CoronaSDK breaks this process for us as there isn't a way to automate the build process. With our Android SDK apps, we have automated build, test, and deploy to hardware devices. With a command line build process we could achieve similar results with Corona.