Spotted in the Wild: Mapzierge

I can't believe we missed this one, but perhaps all the hubbub at ETech can be blamed:

MapQuest recently released the MapQuest OpenAPI, also at ETech. Their premier mashup example is Mapzierge, a blend of EVDB events and Mapquest maps.

Let's see: Google Maps, MS Virtual Earth, now MapQuest. Is that officially a mapping hat trick?