The party line is that he wasn't able to reclaim his place after suffering a head injury on Wales u-21 duty in September but he actually started the next game (a 6-0 home defeat against Yeovil) but never started another league game for them after that. Hopefully he'll have more of an impact at Port Vale, he's obviously got a long way to go before he forces his way in here.
I've never been overly impressed with him, TOBW will be able to give you a better assessment though. A bit of a jack (Jack) of all trades but not quite enough pace to play out wide, not quite enough goals in him, not quite enough strength, not quite enough workrate, not quite enough craft and guile. There's something to work with there but I wouldn't be sure what to do with him if he was in my squad, number 10 probably. He needs to start pushing on now.