the string bending issue always comes up on these kinda things. personally i dont see it as a guitar replacement but a potentially fun instrument to play in its own right, so i dont mind the fact you cant bend strings... also since its mainly a controller sound quality will also be determined elsewhere.
but i imagine the string bending thing could be emulated to a certain degree, after all, there is a big controller on the face of the guitar that i imagine could probably be programmed to do it with a slide of the finger... a different approach for a different instrument
it struck me as the kinda thing you would have seen on cheap sci-fi programs years ago - which may be why i like the look of it ;)