You be able to pick it up either in stores or online via the PlayStation Store. Just remember that the game supports cross-buy, so if you buy it for the PlayStation 3, you won't have to shell out any extra cash for the Vita version. In addition, the game supports cross-save functionality, allowing you to continue the experience between devices. Now that's what I call the power of PlayStation!
Full Frontal Assault will be priced at $19.99, which will hopefully make things a little easier on your wallet.