Some answers to your questions:
#1 List of devices… well that would be a long list, but…
- Android - Any device running a reasonably recent version of Android ( 2.3.3 or later if I recall ** correctly**).
- Apple - Any device running a reasonably recent version of iOS ( 6 or later ).
- Apple TV
- Windows (32)
- OS X
- Windows Phone
- Kindle (really part of the Android grab bag)
- Android TV (same deal)
#2 - No idea what that is. Sorry.
#3 - I think there are plenty of resources here, so I’ll leave this for someone else to answer other than providing these links:
#4 - Yes, you can have pretty much anything you want via Enterprise and some native coding. If you’re not up for this, you can get someone to write you a plugin or ask for it and hope it gets on the list:
Oh and I didn’t see any questions specific to the title here (versus Unity?)
Comparing Corona and Unity is IMHO an apples versus oranges comparison. Unity is a 3D* Engine Corona is 2D SDK.
* I don’t want to start a war here, but Unity says it does 2D however it is still a 3D engine.