Sly Cooper will be returning early next month, as Sony announced release dates for the upcoming PS3 and Vita versions of Sly Cooper: Thieves in Time. If you happen to live in North America, you'll be seeing the game in retailers and on PSN February 5. As for Europeans, a date will land some time in March.
For snagging the PS3 version of Sanzaru's Sly Cooper, you'll get a code to download the Vita version for free via Sony's Cross Buy program. No, this doesn't work the other way around, because the PS3 version costs more.
If skins are your thing, pre-ordering Thieves in Time from "selected retailers" in "selected locales" will snag you a number of skins as well.