Madden NFL 08 review at 1-up.

"Madden's 360 and PS3 versions scored a touchdown. The Wii incarnation fumbled the game away. So where does the PSP fit in? Think of it as a drive that sputters in the red zone, and the team settles for a field goal through the uprights. It's not exactly what you wanted, but it's a positive result nonetheless.

As for what makes it a must-play during those cross-country flights: All-Pro is a serious and fair challenge, and over the course of a franchise season, you'll run into plenty of nail-biting moments. Playing on Pro, on the other hand, is embarrassingly easy and no fun at all if you know what a 4-3 defense is. Rushing for 100 yards is tough on All-Pro, rushing for over 300 yards is easy on Pro."

Full Source: 1-up