Just go to the account management on battle.net and search for the namechange option. There's only a 1time option to change your character name(at least for free, so far, could change on a payed basis for furhter namechanges, I guess). Source: http://www.gosugamers.net/starcraft2/news/13508-change-your-name
Meh, so long as we're only allowed one name per account I don't think I'll be changing mine. I use it a lot as a game name so /shrug. Hell, it's even engraved on the bottom of my laptop.
Still some people that made accounts without much thought or even hit enter after making a mistake will appreciate it
I'm happy with my current nick. I'm glad it's not too easy to do. Wouldn't be fun to drunk-change my name and get suspended :laugh:
I had Hamburgler which i use generally for gaming but nearly every game i got asked if i were from hamburg and then had to explain who the Hamburgler was/is so i have changed to Jarv which is my RL nickname and has been since i was 6