Braylon asked for the move in attempt to get on the field sooner/more often. Bo wants to get a peek at him at WR as well. Spring is the best time to try these things.
I assumed that was the reason. I'd prefer he get on the field sooner/more often at RB next season, as he will presumably be healthy. He seems like the most complete back we'll have once Burkhead graduates. It makes sense to give him some work to see whether he can handle the load and to prepare him to be the guy, at least potentially, in 2013. It does not make sense, again in my opinion, to move him to CB.