IronStar: It's still DRM as you need to log in somewhere so some client can check if you own the game with server, and you need to do this to get full functionality. If it's DRM free, than it doesn't check anything, it just allows you to sync it, then anyone can use it, even those who didn't pay for it.
Gersen: No it's not "full functionality", it's only some optional features that you can decide to use or not.
I call patching pretty integral to a game I buy to be honest. I've seen games that did this 'no-DRM' approach. It basically meant the DRM-free part was a crippled husk of a game without the day one patches, which of course required you to register your CD-key/log in.
I don't call that 'optional features', and if that kind of 'DRM-free' thing became common place, crippling the supposedly DRM-free part with day 1 patches would be even more common place than it is now. It's just trickery basically.
Mind you in these cases the only way to *get* patches is to use that service.