Eurogamer is reporting that:
So they still dont want to put dual analog sticks on it, but this will potentialy be a nice replacement.
"Sony's current vision for the next-generation PlayStation Portable is roughly the same size as the PSP-3000 and has touch controls on the reverse of the unit.
According to three separate development sources who have seen and used the new PSP, the screen is rich and detailed but the headline feature is the way games are controlled - by a touch-sensitive area behind the screen."
http://www.eurogamer.net/articles/2010-08-19-new-psp-has-touch-sensitive-controls
So they still dont want to put dual analog sticks on it, but this will potentialy be a nice replacement.