TC Mag published some details of the upcoming Mobility Radeon HD 3000 series GPUs from AMD. There will be six cards and all of them will be manufactured on 55nm.
The lowest-end offer features the HD 3430 which is powered by the M82 GPU with 40 Stream Processors but the chip may be used on at least one more card. Going up the performance scale, the M86-equipped Radeon HD 3650 comes with 120 Stream Processors, support both GDDR2 and 3 memory and is related to RV635.
For the more hardcore mobile gamers AMD seems to be planning four cards based on the M88 (read RV670) and these are the HD 3850, 3870, 3850 X2 and 3870 X2. The last two cards are CrossFire pairs with 1GB of memory and 640 Stream Processors while the 3850 and 3870 are those things that will put Nvidia's 8600M, 8700M and 9500M card to shame with their 320 SPs and 512 MB of speedy GDDR3 memory. Things are heating up.