I know its not a popular series on Gaf, but LBP is the reason I bought a PS3 in the middle of a serious WoW binge. I have an obscene amount of time played on LBP. I bought many of the level packs, came back for the water expansion, bought LBP2 CE day 1 just for the costumes, platted both console games. I probably have dozens of unplayed levels qued up because its been a year+ at this point.
Anyway, I am completely hyped for this. I don't care if the story levels are good (very hit or miss so far, though LBP2 and some level packs have a few great levels), I think they want to leave the really impressive stuff for the community to figure out.
If it is as expansive as LBP2 (looks like it from that reel at the end), I will get hundreds of hours from the amazing community. I just hope they are still around, I know some people were mad about creation tools being in DLC and stuff like that, but they made some incredible shit. I was really into some of the crazy remake stuff, like the guy who made a really well done DK arcade game, though it seems to have been broken by a patch at some point. Somebody also made an entire dungeon from zelda 1, with all the enemies, keys, map layout and everything. Even the boss! Goddamn, just finding stuff like that felt amazing.