Some more information regarding overclocking + undervolting the Ivy Bridge processors now that some of them have officially been released.
It looks to not handle extra voltage well, which results in the lower overclocking ability. However, the article shows that even while undervolting the processors, a decent overclock can be achieved. The 3770k has a core clock of 3.4Ghz, but they were able to achieve a 3.9Ghz overclock (500Mhz across 4 cores) while lowering the power draw and heat output of the processor. Not bad. Granted, this generally isn't a huge concern in the desktop space, but it does show that while they're not great for uber-high end enthusiasts, they are nice for "normal" people. And it does show that they'll be great in the mobile market, too.