Is anyone else feeling a little bit of déjà vu? For those that don't know, Sony has now officially unveiled the PSP2, which has a codename of NGP. We also know that the device has a touch panel on the back and a touch screen on the front. There are cameras, analog sticks and a bunch of other features. Finally, we know that the device is set to see its worldwide debut sometime during holiday season 2011. That means that once again, Nintendo and Sony are going to be butting heads in the portable world.