Yea it looks good, and yea it's cool that they can do this on a mobile devices but as a gamer that plays on consoles/computers, it doesn't have much draw for me aside from a show off feature. Me personally if I'm going to be playing a shooter it's going to be battlefield 3 on my couch enjoying a big screen. It just doesn't seem like something I would be playing on a bus ride or waiting for a meeting to begin or something. it is cool though.
Edit: Don't get me wrong I would probably play it, or at least play the trial ( cause I'm cheap) but mobile games kind of bore me in a short time compared to there console brethren.