My computer I built up over the weekend has got a mobile 2400+ in it with the AQYFA stepping. I can't remember what week it is but it's a hell of a nice chip. I had it over the weekend stable @11.5x204=2346mhz at 1.65vcore. I had it at 12.5x204 @1.675vcore but failed prime95 in a few hours. I'm very pleased with its performance considering I built it up as a "budget" system. The parts include:
Mobile 2400+ cpu
biostar m7ncd Pro mobo
vantec aeroflow HSF
buffalo 512mb pc3200 ddr ram
sapphire 9600xt video card
At the moment I think i've got it stable at 11x200 @1.45vcore. I started the computer and played some games for a little bit but I haven't started prime 95 yet. If it passes that overnight I'll try and get the FSB up bit by bit and try to keep around the stock vcore to keep the temps nice and low. I've also got 3 case fans on the way and hopefully that will pull my temps down in the upper 30's/lower40's at full load. That will give me a lot of room to play with.
EDIT: a bit too much wishful thinking on how much my temps will go down
SECOND EDIT: 11x200 @1.45 was a no go, same for 1.475, I left here for school with it about a 1/2 hour into prime95 at 11x200 @1.5vcore. I'm pretty dissapointed in my HSF after running it for awhile. I was expecting a lot better performance out of it. When the vcore was around 1.7 the CPU would run very hot. It hit 61 celcius at 1.675 after the prime95 ran for a while. I honestly think it would have crashed before 10+ hours worth of it anyways so I'm going for a low temp stable oc at the lowest voltage setting I can get.