I'm currently making good progress on Zerocoin. I'm almost finished with adding RSA UFO support to the library, and then I can move onto other aspects of it, such as storage of zerocoins in wallets. I'll give an update on Saturday, September 13 about when I expect Zerocoin to be code complete. If no major problems are discovered, it won't be long before a hard fork where we actually add ZC support to Anoncoin and you all can start using minting and spending zerocoins.

When I started this project, I wanted to be completely transparent, and so all the commits were done in a public Github repository. Well, now I think that was a naive decision, since there is a lot of copying of features between coins. Therefore, I will release commits to the public on a 2 week lagging schedule. Since the first private commits were on September 3, you'll see those commits on Github on September 17 (8 days from now). They will be in the "zc" branch of our repo: https://github.com/Anoncoin/anoncoin/tree/zc

I think this is a good balance between transparency and business sense. It's not good to go to the extreme that Darkcoin went to, where they kept their DarkSend feature closed-source long after production software was released.

Also, see my last update, if you missed it: https://bitcointalk.org/index.php?topic=227287.msg8599297#msg8599297