I am currently in the process of reviving i0coin. To that end, I need beta testers for the new client. PM if you're interested (and have the i0coin blockchain already).
Also, merged mining support would not be available in the initial release, but the door is open for it to be added later.
You need to use -testnet then so you don't screw up the real net.
Even better would be to help get the merged mining patch to apply cleanly to current bitcoin, so a proper update all the way to recent code can be done.
-MarkM-
Using -testnet wouldn't let us test against the current blockchain to make sure it is being reloaded properly with all of the past forks and changes to the chain being followed properly.
It wouldn't screw up the real net unless there was more hashpower than the non-testing people have, and we're not hashing at this point, just trying to validate the current chain.
Could really use a block explorer right now tho... anyone still have an i0c block explorer up?
-- Smoov