Since the G-Star video of World of Tanks Blitz is already
public leaked from Korea, I'm ready to cover your questions, if any. I did notice a few here.
This is a pre closed beta version with draft UIs (both hangar and battle), somewhat limited in-game functionality, and not final graphics. All in all it has ~85 tanks, 5 maps. It was running on ipads, though Android version is also functioning.