Pumps.ie is similar to MapEire, but concentrates on the narrower area of Irish petrol prices for the moment. It's got a terrific interface which makes it really easy to add new petrol stations. Good to see more and more Google maps mashups for an Irish audience.
What's I'd like to see next is more specialist mashups providing services to tourists for example. Why not display the landmarks, public toilets, public telephones, picnic areas, etc, being gathered as GPS waypoints in the OpenEir mapping project?