Hi again!
This all looks pretty straightforward to me. Munchkinism as a play style tends to be associated, in the minds of experienced RPG players, with young, novice RPG players. This links it inextricably with D&D, the game so many of us started out with when WE were young, novice RPG players. And with the current D&D ruleset foundation open to public use under the OGL, it seems only natural to choose it for a game that has fun with the conventions of munchkin-style play. This hardly seems like some sinister plot to associate poor innocent D&D with "evil munchkinism", or like a subtle Swiftian swipe at the things Jackson doesn't like about D&D (which, if I recall correctly, have little to do with the munchkin play style itself).
Posted by ColonelHardisson
The way I see it, it better be both funny and well-written, like HackMaster, or I may be less inclined to buy SJG books.
This seems entirely sensible. I always want game companies I like to put out good product, especially if they are competing with something as impressive as Hackmaster, and when they fail it always makes me take a second look at their future products I might be considering. d20 Munchkin would have to be very bad indeed, though, to lower my opinion of SJG as much as
GURPS Supers or
Authentic Thaumaturgy did.

From the sound of some of these posts, some folk here seem to be expecting a blatantly cynical cashing in on the "d20 fad", dripping with ill-concealed disdain for dim-bulb fanboys with gaming $$$ burning holes in their pockets and too clueless to realize they're being mocked by their betters, those who have moved on from D&D. From what I've seen of SJG's other munchkin-themed products, though, I doubt that will be the case.
Posted by trancejeremy:
I doubt that a GURPs release was ever contemplated.
As do I. GURPS goes into a lot of detail for the sake of realism. Who would put up with such detail in a comedy game steeped in the glorious unrealism of the munchkin play style? Even if Munchkin were not being done in d20, I doubt it would be done in something as imposing as the full-blown GURPS ruleset. It just might, though, be done in the lighter-weight new "Powered by GURPS" thing they're starting to use at SJG.