A trip to endgadget shows that the new and improved 65nm 360s are beginging to slowly trickle out from production. Apparently, the first set of consoles to boast the new cooler CPU is the Halo 3 Limited Edition consoles from lot #734.
Apparently buyers of the Halo3 edition console will be Microsoft's first guineau pigs for the new chip. I am curious to see if it really prevents the Red ring problem, and if it does, how quickly Microsoft will be to ship all of the 360s with it. Only time will tell I guess.