I haven't actually played WoW in over a year at this point, except for some time put in for Cataclysm since it launched. I had figured that Cataclysm would rekindle the fire, but it just has not. I am done with MMO games.
With the demands on my time over the past year, and other reasons beyond that, I just do not have the time and inclination to keep maintaining addons, especially since I don't play the game anymore.
There are more detailed notes on my most popular addons (SBF, Digits, StatusWindow) talking about them. For the rest, I release them to the public domain. If you want to grab the code and keep maintaining, enjoy!
It's been a pleasure. Good luck in your future adventures in Azeroth!