C. Assassin's Creed is by far my favorite game series to come out of this generation, and Liberation looks like it'll be of the same quality as one of the console titles. While there are a few other games I'm sort of interested in (Namely Black Ops Declassified, though I have a feeling it'll be about as good as Nihilistic's last two games), Liberation is the game I'm looking forward to the most. I may just buy the Vita bundle when it's released.
Now Playing - Dust: An Elysian Tail (360), Soulcalibur (360), Soulcalibur V (360), Call of Duty: Black Ops (360)
While Liberation is definately a factor in me getting a Vita, there are many other games and features that the Vita has that appealed to me. Such as Cross Play/Buy, LittleBigPlanet Vita, Sly Cooper 4, Metal Gear Solid HD Collection, Wipeout 2048, Uncharted: Golden Abyss, Resistance: Burning Skies etc etc.
I bought it solely on potential alone, but I've discovered just how great Lumines is through this thing. Plus shortly after I got P3P, Virtua Tennis 4, Dynasty Warriors and Sound Shapes. There are also a number of future titles I think are worth buying, so AC3 is sharing the spotlight here.