I read a piece on this last week.
The lad seems to have done well for himself getting a place at Burnley but he's going to be behind a lot of keepers there so it's no where near guarenteed that he'll ever play for them.
Bilboe must be doing something right for the managent team to keep him but as for the remark from Warne saying that he'd have no problem putting some in the first team I don't believe it because the stakes are too high.