I don't know if these were posted yet, but here are some screenshots of Sly 4 from the Vita. They were posted by VanWinkle.
YES. Sly 4 is a native res beauty. I have to respect anybody who wants to get that game :D In case you didn't see it, here's a couple of screenshots straight from the Vita's built-in screenshot functionality (but shrunken down to a size that best represents how it looks on the Vita screen):
I personally can't wait for this game. Huge fan of Sly Cooper and the Gang.