KavazovAngel: [Starcraft 2 has a custom "DRM", similar to what Diablo 3 will be using. You'll be able to play the single player "DRM-free" (offline mode) if you log on at least once every 30 days. You need your account for playing on Battle.Net's servers.
strongmokus: Playing offline mode requires online activation. That's online DRM. And it's official, not just my point of view. ;)
Yes, I agree. I said custom "DRM", because only part of the game is DRM-ed. :p
Phosphenes: I still think Starcraft 2 should drop the logging in every month thing. It is a mainly online game but it can still be played just as well single player or on the lan. What about people without Internet access.
I think the possibility of exploiting the guest pass system is the reason they added the 30 days reactivation.
macuahuitlgog: I should of been more clear. I'm talking about the DRM that gets installed on to your computer like Securom.
Nope, afaik Blizzard used their own custom DRM in the past for disc checking.