While F5'ing Bukkit's Twitter account most of today, that thought occurred to me as well. But, from what I know of lawyers, they can make anything happen if they REALLY want to (that's why they don't have the most savory of public images, typically). And certainly Notch has enough money to hire some really good ones, if this was what he really wanted to do. I can imagine at least one argument myself without legal training, haha. Perhaps the law-man would say "Because the original Bukkit code was illegitimately derived from the copyrighted work of another author, its developers had no right to create any such license in the first place." And who knows where the legalese would go from there. Point is, so long as all interested parties were on the same page (Bukkit guys want a job, Notch wants rights to the Bukkit code, no one has any objections), I'm sure a lawyer could work it out. Then again, perhaps you're right -- and if you are, I'd STILL bet Bukkit WILL die because its original authors will stop working on it, and be replaced by this new "thing" that the Bukkit guys, I guess, have been hired to make. Maybe someone will pick up the original open-source Bukkit torch, but if users flock naturally along the path of least resistance, they'll probably just go to the new "thing" and stop using Bukkit, rendering it irrelevant anyways.