The best physical attributes of the PlayStation Vita are the machine's big screen and twin analog sticks.
Every PlayStation Vita game will be downloadable, but some, like Super Stardust Delta will be download only. This one will be out for the machine's mid-February North American launch.
Not all NGP titles are reinventions of games found on the Playstation 3. Sometimes, like in the case of Super Stardust Delta, they're simply an evolution.