Is that confirmed then? Is the 360 demo definitely an older build?
Once again, any release date for PC demo?
Not confirmed, but it could be a reason for the delay, though I'd imagine unlikely. I reckon the PC delay is more to do with security, as it's a lot harder to "adjust" a console game than a PC game. Or, it might just be that MS paid for exclusivity of the demo.
In all honesty, giving out a demo of an old build (which we know it is from what Kamy said he was told at the playtest) is pretty poor to give a representation of the game and of themselves. Especially if some of the bugs they've fixed are ones which look quite amateurish.