My cousin has an imported PSP. He can play Ridge Racer for around 6-6.5 hours fully charged. Is it worth it? To me it is, but im a big playstation fanboy. I will wait til they sell the value pack alone in the states. As it is now they are only selling the bundle pack which ships for $400 in late march.
As for the DS nothing about it impresses me, the touchpad is a joke peoples ignorance amazes me, they act as if this is some brand new technology. The graphics are laughable and the screens are tiny. It isnt the PSP thats overhyped its the DS, mashing on a itty bitty screen has no appeal to me, so while some kid is giving himself blisters ill be watching a movie then switching over to some grand theft auto.