OMG I have been waiting for something like this. Deep Belief Networks have been smashing machine learning records in jsut about every domain. The only problem was that they were annoyingly slow to converge, and hard to program/debug

see Hinton's google code slides for more info on how powerful these things are:- http://www.youtube.com/watch?v=AyzOUbkUf3M (that's 2007, things are even spicier now)