Yesterday, we learned that Good Old Games didn't actually go down - they were just building a new site and decided to have a bit of mischeivous fun with it. They may have pissed a few fans off in the process, but it looks like the stunt worked. Shortly after the site went back up, it had trouble staying up - due to server demand.
A post on GOG's front page reported 20 times the amount of traffic the site has ever had. Worth making a few founding fans angry? Probably.
Their "welcome back" post included another apology, and reiterated that Baldur's Gate was now available and would be supported with other Hasbro licenced games:
We know our little game with closing down the site made some of you angry. Once again we'd like to apologize to everyone who felt deceived by us closing down GOG.com without any warning and without giving you access to your games. We apologize for that from the bottom of our hearts, it was done with the best of intentions and hopefully we can make it up to you!