Heh, nono All Star was meh for me at first. Then I played it at E3 and again recently at GamesCom - totally love it. It's not Brawl. But you can clearly see the inspiration. It's probably more similar to MvC3, but with a confusing health system that I think they will definitely be changing before launch.
Problem was the Vita had a wonderful launch, then nothing. But thankfully that'll be changing in the coming month.
Sound Shapes. Playstation Mobile. PS1 support. And the above mentioned games (and my own
and a couple of games from buddies)... It's got a lot coming soon. until then I'll still play my 3DS more.