I think doing this would make the Xbox a lot better and as Biggles' said, it will become complete. I mean, PS3 has the ability to do this, so why do we not? Some people do not have the luxury of having both an Xbox and a Computer. Adding an internet browser would mean that they could do it all from their Xbox which would be fairer on them, so I think it would be a great idea if this was clarified and confirmed.
It would help everyone, we would be able to do things easier and quicker. I love this idea, I think it is a winner.