Sony has updated it's PlayStation stores in the EU and US for the PlayStation Vita, meaning the Soul Sacrifice demo is now available. Soul Sacrifice is arguably the biggest new first-party IP that Sony has been developing for the PlayStation Vita, and with Keiji Inafune at the helm, it's bound to be good. Keiji Inafune is best known for the Megaman and Onimusha series, so he's got a good track record.
The demo is in fact the start of the game, and although the voice acting is a little odd, if you give this game some time, you will love it. It's also important to note that if you buy the full game when it becomes available, your save progress will transfer over from the demo. Download it now!