You are looking at it backwards. They are not adding a phone to a psp... they are adding a psp to a phone.
If you had two android phones to look at, and all else being equal, but one having the ability to download and play games from psn... would that make a difference?
To me, if the price difference isnt huge, it would sway my decision. As long as this has all the compatability/apps/and functionality of any other premium android phone. Although psp games might be annoying without the nub.
However, all other games that like to use those on screen touch dpad and buttons would be much better (phone games, such as zenonia.)
I'm interested to see this after release... may be a tossup between this and iphone4 in dec2011 when its contract renewal time.
it might be the next best thing to a ps3 imagined all the hacks that's going to come out for it lol. i can't wait, start making hack for this phone guys i would love to see some of your work. i bet i will be use the most hacking the ps3 if sony can put hold to our fun that will break all unlock the ps3 completely.. you heard it first from me, and watch it happen as soon as it gets out. yea hackers!