Grargar: While unlikely for anything bad to happen right now to their catalog here (at least if Bethesda is any indication), nobody knows what the future holds, so backup your Activision-Blizzard installers.
MartiusR: Is it even possible? I've thought that Blizz allows to download games only via client and it can't be done without connecting with their service (every time you wish to install game). Or did I missed something?
I'm pretty sure he means the ones on GOG - Warcraft, Warcraft 2 and Diablo.
EDIT: Sorry, actually there's a lot more, for some reason I was only thinking of Blizzard, but this is about all of Activision.
Anyway, it doesn't really concern me. I have not touched anything by Acti-Blizz for years and years. I'm never happy to see giant companies grow even bigger and all IPs get gathered under increasingly few banners of mega-corps, but in this case it's not like Acti-Blizz wasn't one already, so there's not that much change.