I would expect around xmas time. The tegra 2 is a nice chip no doubt. But still I would rather have something that was meant for a PC vs a mobile chip. Like atoms, tegra 2, qualcomm. AMD has some really nice mobile solutions coming out now that Llano is shipping. Then you have intels CULVs which are pretty dang awesome also.
i7 930 @ 4.2Ghz
GIGABYTE x58 UD7
Kingston HyperX T1 Series 12GB
GIGABYTE 7970 (1280/1800)
OCZ Vertex 2 100GB SSD & VelociRaptor 300GB