Those super cool developers of CyanogenMod are whipping up a new version as we speak, XDA letting us know that there's an unofficial alpha version available for Nexus S now. Christmas day there was a tweet from the folks at Cyanogen that said they'd not released an official version of 7 because they'd not fixed the camcorder yet. Later that day, a fix did indeed occur. XDA Developers forum member Koush released an alpha version with the fix, the real deal undoubtedly now heading up quick.
The release date for the real deal CyanogenMod 7 is yet unknown, but as Santa delivered Gingerbread to Cyanogen's tweeter's EVO, it's looking like SOON is the answer. The alpha build for CyanogenMod 7 can be found over on XDA Forums.