Intel recently said (May 4th) that IB will be debuting 22nm and trigate tech, this *Fall*. Intel has been saying Fall 2011 for IB since early this year.
A lot of Intel's road maps show IB as Spring 2012, but those road maps were re-used older maps. All of their press releases have been saying Fall.
Supposedly Intel will be making some announcement on Tuesday, so you should stay tuned.
Also a rumor that Bulldozer is pushed back again, but only 2 - 4 weeks apparently. However zero confirmation on that, so I don't give it much credence.