There will a beta test for LittleBigPlanet 2 "soon", according to the official community website.
You are "all" in with a chance to take part, apparently, especially those in the beta group forum there.
LittleBigPlanet 2 will be released on 16th November in the US. Sony hasn't revealed a European date, but we expect to hear something this week at German expo gamescom.
That's LittleBigPlanet 2, then - a game that makes games, has grappling hooks and much, much more.