The tablet is weird - and only 3 hours of battery life for the projector... what's the point? It's basically tethered to the charging cable. Plus, Android.
Agree with you concerning the battery, but the idea of a projector is excellent. And if they push it, i.e. good resolution + battery life, it could become a major plus for a tablet. I mean, watching Breaking Bad again in my bed and displaying the movie on my ceiling would definitely charm me.
Concerning Android, the real problem is all the shit they put over it. Because if you take a clean Android, such as the one in every Nexus device, it's in my opinion the best OS for a mobile device.