I0coin development is continued at https://izerocoin.org/

Please upgrade to (at least) i0coin-0.8.3-2 (or current git HEAD, branch i0coin-0.8.x) as soon as possible. All old clients are on an unsafe, unsupported and mostly stale fork of the I0coin blockchain. The fork occured on September 10th.

Documentation and discussion on bitcointalk.org:

Want some free I0C? Go to i0coin give away promotion by Lightlord.

Wanna trade I0C? Go to Vircurex. If you use my referral URL you get a discount on the transaction fees.

In an old and interesting article by Marc Bevand, you can read about the history of the coin. Was there ever a second tangible good sold for I0coin?

Development takes place at http://github.com/rsnel/i0coin/. The following branches are of interest:

master: bitcoin/master is continuously merged with this branch
i0coin-0.8.x: the currently recommended branch, based on the latest bitcoin-0.8.x

Releases before i0coin-0.8.3-2 are deprecated and don't work beyond block 895079. Everybody should upgrade to at least i0coin-0.8.3-2.