TH:PG is a solid game that can be recommended to either the hardcore Tony Hawk fan or the casual gamer.
There really is no storyline other then you're a new skateboarder, you just opened a skate park, and Tony Hawk magically appears to be in town. After you do what you have to do in you're skate park, you then go to Philly, then it just keeps going on and you have to complete specific goals to pass the level. Basically the so-called "storyline" is the same since Tony Hawk's Pro Skater 4. With the exception of Tony Hawk's Downhill Jam.
The gameplay is the same basic gameplay from all the past Tony Hawk games, except that you have the "special" tricks that you can do if you tap them on the touch screen. The environments are just as good as the past Tony Hawk games, but they are somewhat smaller then the new ones in games such as American Wasteland and Project 8. But hey it's a handheld game for Pete's sake!
Some people may be wondering about the character customization and how good it is. It's good, you can design your clothes and your skateboard deck. But what I've noticed is that the shirt customization has one problem, it has to be a long sleeve shirt. It can get pretty aggravating when you have a great idea for a short sleeve short, you make it, and suddenly you remember it has to be a long sleeve short. Then with modifying the shirt to be a long sleeve shirt, it can be either better, or worse. But other then that one problem, it's great.
In summing this review up, TH:PG is a solid game that can be recommended to either the hardcore Tony Hawk fan or the casual gamer that wants to go on a Tony Hawk video game ride. And if you don't want to break down and buy it, you can rent it and then see what you think.