IrishCoin is still very much alive and being maintained. The coin thread you refer too was a preemptive false coin launch by someone else. We've had great participation and interest from Tourism outlets and retailers alike here in Ireland and we will publish a full business list on our website end of this month. Slowly as she goes. On-wards and upwards.
Sean, IrishCoin.
http://IrishCoin.orghttp://irishcoin.org/images/guinnesspress400.jpg