I've received my import version of Ratchet & Clank Future: Tools of Destruction yesterday and already recorded and uploaded these first two videos. The first one is almost exactly the same thing as the demo (minus the disco ball), but the second one shows the beginning of the second level. At least two more videos will follow in the next few days, unveiling more of the gameplay mechanics.
Update: As promised, here are the last 2 videos, showing the upgrade system for the weapons and some simple puzzles.