This was mentioned earlier but I couldn't respond at the time. The Vita version of Origins is not substantially inferior to the other versions. The framerate hit is not significant and is very infrequent. While the multiplayer aspect is missing, the ability to play it on-the-go is perfect for this type of game. Additionally, there are collectables on most levels that are unique to the Vita version and are gathered through touch controls.
I really like the Ubisoft has distributed this game on virtually every platform.
But it is inferior, right? That's important.
You guys really aren't doing a very good job of convincing me to get the PS3 version, I must say. /snooty voice