If you've taken matters into your own hands and use custom ROMs on your Android device, you've surely heard of CyanogenMod.  Version 7 is the initial Gingerbread build, and it looks like we'll be seeing nightly builds in the near future.  No word on exactly which devices we're talking about to start with, but the Nexus One, T-Mobile G2, the Nexus S are good bets.  The rest will follow as the developers get things closer to working, so hang tight and you should be seeing the build bot at work shortly for your phone.  [@cyanogen]