The PSP2 is going to a BEAST! No wonder they're having trouble balancing power, heat, and battery drain.
Kaz Hirai again made mention of Playstation and tablet in terms of future Sony strategy. It may be possible the PSPTablet is a device we haven't seen yet, and Sony is approaching gaming from all directions.
The PSPhone having a 1Ghz CPU, 512MB of RAM and ROM, and separate GPU? That puts it in the lead (right now, because dual core CPUs are soon to come) for phones and makes it a serious gaming device.
I'm excited for the tablet idea becuase I imagine it would have some sort slide out or folding gaming pad or keyboard (I forget who it was, but someone has a prototype dual screen gaming device where the bottom screen has raised keys that can be changed according to need, not saying PSPtablet will have that exactly, but some sort of attached gaming touch screen wouldn't be too far fetched) but I refuse to buy a tablet until it can make phone calls over 3G/4G, thus replacing my cell phone, unless of course the 3DS can do it...