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.
For someone like me who played the PlayStation 3's Super Stardust HD obsessively, Delta looks quite right to me.
I do apologize for the glare in this video. The game looks much sharper in person, and has all of the visual sizzle of its PS3 big brother. Enjoy.