http://psp.ign.com/articles/886/886211p2.html
-No UMD
-Touch Screen
-Dual Analog
-UMD Format = Obsolete
The article also mentions that PSP software has dried up.
@Xdqwerty, Its all about tech and it has an interesting story. Lain becomes obsessed with a virtual world called "The Wired" and that she tries to explore her true identity.