Didn't know about Didimatic so thanks for the heads up! I definately can use that service ;)
I'm sure there are other efforts out there, but I use FB alot and didn't see anything like it on there. Like I said if you a serious gamer that hits up places like GOG you probably won't need it, but I think it will be of service to casual gamers.
And PS - I didn't join to announce this (though it was my first post so I imagine that it does look that way). I joined to get M.A.X. 1 & 2 for $6.00. Now that was a SWEET deal! Thanks GOG! :D