You won't be able to do anything with it for nearly three weeks, but if you feel so inclined you might be able to go down to your local Walmart and pick up a PlayStation Vita game. There are reports of the launch title ModNation Racers: Road Trip already being stocked on the shelves of the discount retailer. Unfortunately, you shouldn't count on being able to find an actual Vita until it goes on sale on February 22.
This isn't necessarily retailer error, though with Walmart we wouldn't automatically give them the benefit of the doubt. It's possible Sony didn't put an embargo on the game because giving out early units isn't that big of a threat (you still need the Vita before you can play it). Or perhaps it's a way to grab some early sales from customers who would otherwise have had no interest in ModNation Racers but jump are too anxious for their Vita to turn away an early copy.
A third possibility is that the early copies are only available to Walmart. Game publishers have been known to give special bonuses or perks to the world's biggest retailer because it is such an important part of any game company's bottom line. In any event, it doesn't really matter *why* it's there, just that it is there. So if you absolutely positively need to hold something Vita-related in your hand before February 22, head down to Wally World.