just came into my mind.. it's something that can save you hours of work early in the morning hitting "quit" with one eye open...heh (yeah.. i know the temp feature.. but browsing through thousands of 1012*9*3**.blends isn't fun either..)
never happened to me though (thank god! lol)
but i guess it wouldn't be such a problem to implement...
just a suggestion. :)
Yeah, this would be nice. Maybe if it kept a copy of the current .blend in the same directory called lastedited(nameofblend).blend
quit blender? why would you want to do that?