It will be interesting to see how launches first. I don't see anyone going super early like the 360 since Nintendo will ride the Wii for as long as they can, the 360 is pretty much the success as far as traditional gaming consoles go, and Sony...Sony is so arrogant to do something like that. If anything, I see Sony releasing the PSP2 and having that as they main device for a while. I don't think it's so far fetched if it it's somewhere between the PS2/PS3, is designed to also be used on the TV from the get go, and has online integration all at the start.
actually typing that out made me realize that the next gaming device I'm looking forward to most is the PSP2