correct if I'm wrong but:
IXC is not a fork, is a clone of BTC + some different features but 100% compatible with BTC
merge mining of: BTC-IXC (the clone)-I0C (the clone of the clone + some different features but 100% compatible with BTC)-others (Devcoin, Namecoin)
3 kind of "trains" that can run on the same rails (blockchain) + (maybe some more trains or trainlike can run too (BTX, BCH, 0x, Nullex, Bitcoin AIR,... )
before BTC-IXC-I0C and others I think was only on a testnet stored now...mmm...inside the best chocolate hills?
first coin ready by now is I0C, then IXC, and last the pig BTC
Hahaha. So the first will be last and the last will be first.

U can skip 5 years in nanoseconds, meanwhile here in the current time have to wait every slow single second...I can't image how hard could be...years