C'mon, are we kidding ourselves here !
at 4.2ghz from 3ghz is approx 41% overclock on Air ! very stable too. What the hell is wrong with that ?
It seems a lot of visitors to this site are spoilt rotten and expecting BIG things from bottom of the range chips...
I don't know about prices around the world, but here in Oz - these chips can be had for only A$270 approx. Bargain !
The biggest problem I find with this chip is not being able to use 14x multi, from what I hear you got to use 660 or 670 to get that happening.
If you use Corsair's 5400ULs or the 8000's on P5WD2 mobo and use 3:5 with tight as stable timings - great memory efficiancy really starts coming on, especially around 933mhz and up. In Everest and Sandra you cream everything as long as FSB is at least 280mhz +.