Source for i0coin version v60300 is available at
http://i0coin.bitparking.com/. This is rebased on top of bitcoin v0.6.3 to pick up recent important fixes for security issues in bitcoin. It is based on kr105's work with his recent rebase and some fixes of mine. A checkpoint was added at block 367,000. The activation times for BIP 16 and BIP 30 are the same as what kr105 set them at.
In the rebase I squashed everything into one commit to ease rebasing on top of future bitcoin changes. No binaries yet, but once I've worked out how to build bitcoin with Qt on my windows system I'll get a windows binary up.