Wow... this is utterly mind blowing even in its early state. My vote for best plugin...ever?
I would have killed for the equivalent of visual studio's f12, and now i have it, plus really good code completion that just works (still a bit rough, but its great still)... props to you quarnster.
Edit: To help other newbies, to get the most out of it I had to change my options and add them to the User version of SublimeClang.sublime-settings like so: (on mac os lion, will try win 7 64 bit eventually)
Also, it seems once you install Xcode 4.2, all the gcc stuff is moved from /usr/ into /Developer, took a bit to figure that out...