This pretty much puts the stake through the heart of the Socket 775 as far as E8600s go, and when everyone thought the 1156 Socket was a dead horse, Intel does it again. 1156 the new Gamers Dual Core Socket with the option of i7 and 1366 The Server/Work Horse.
I would be willing to bet that the i5 750 is actually a better chip (for a quad core). I would think that if it were possible to have made the i5 750 as a 32mm, they would have jumped at it. Its just a matter of time until even processors such as the i7 are able to hit 5.4Ghz on Air.
Also I remember 3oh6 mentioning a few times that the i5 was no good for benching unless it hit 7ghz, I'd say it's going to hit at least 7.5 before the end of it's lifespan. Might be worth picking one up some day.