Word on the street is Ivy Bridge has been delayed, but that doesn't mean you have to wait till June to get the low down on some of the shiny new silicon Intel has in store for you. Chipzilla posted a sales book, presumably on accident since it's been pulled, with details about upcoming i5 and i7 refreshes. The only page we were able to find was loaded with Core i5s, including third generation parts like the 3.4GHz 3570K which packs the new HD4000 and, most likely, an unlocked multiplier.
Engadget, New Intel Ivy Bridge i5 details leaked in Intel sales book