It's been a while, and maybe this idea is too little, too late, but I'm still a little bit disapointed that I can't play all the games on my Great Adventure Bundle. (particularly Whispered World)
Then I remembered that when I got the Humble Indie Bundle, they provided codes so I would have access to all the included games on Steam. That would probably fix the bulk of the compatability issues many of us have had with the Great Adventure Bundle (At least for the titles that were available through Steam.) Is there any chance those who purhcased the bundle could get a code to activate those games on Steam, or would that be undoable for various reasons?