As much as I’d like to say PSP2 is just a rumor still, it is pretty hard to deny it as being false at this point. To further support the ‘rumor’, Sony has patented new touch pads. The technology detailed here seems similar to the rumored touch pad that are on the back of the PSP2. There have even been rumored leaked images that have the pads on the back as well.
EA has pretty much confirmed the existence of the PSP2. And while we should still be weary, I think at this point it is just a matter of time till we see it. Hopefully Sony plans on actually announcing the device, and the PlayStation Phone, sometime soon.