Kristian: Well why release the Dos version OR the Windows version when you can release BOTH? That is my way of looking at that question.
Compatibility issues. GOG wouldn't release a Windows version of a game if they had figured out how to make it run on all their test machines, or expected to get flooded with support complaints. DOS/DOSBox is always more stable.
On the other hand, I believe somebody said that nGlide actually worked with the Windows version of one of the upcoming games, so maybe we could get both versions.
Crosmando: This is why I'm skeptical of the claim that GOG NEEDS a new publisher to sign up right away, of course it would be good but it's ... still a great deal of classic games on EA (and some on Ubisoft's and Atari's backlog) that could come to GOG first.
I'm a bit of a completionist so I'd rather the entire EA classic backlog gets released here before GOG move on to new pastures. And to think I signed up here in the hope of Red Alert 2 coming to GOG, and it still isn't here :/
I agree that GOG doesn't NEED a new publisher. (They could probably just live off new, indie releases if they wanted to. ;)
My worry would be letting opportunities slip them by because GOG feels too comfortable with where they are at. Suppose the GOG event at QuakeCon did somehow prop open the door to seriously talk to ZeniMax, and eventually that leads to ZeniMax coming aboard. What if GOG hadn't bothered with QuakeCon because they felt fine without ZeniMax (although it may have exclusively been to promote Rise of the Triad), and let that opportunity slip them by?
Admittedly it's a lot of "what ifs", but I'd still feel better with GOG making sure other publishers continue to see them in their headlights/sidelights, one way or another, because one never knows where opportunities could crop up.