Corona SDK 2014.2358
OSX 10.9.4
iPad iOS 7.1.2
I just compiled an old project with 2014.2358. When run on an iPad the display falls back to iPhone 2x mode instead of using full-screen iPad mode. It looks like some of the tweaks for iOS 8 have broken something.
Build 2014.2354 works fine and enters full screen mode on iPad.