Through much of Burning Crusade and the early parts of Wrath, my Zapthrottle Mote Extractor made me ridiculously pleased to be an Engineer. Slurping up element-bearing clouds was an excellent bonus on top of my mining yield in Nagrand and Wintergrasp.
Beta testers, can you find out if there’s any use for the Zapthrottle in Cataclysm? I’d hate to think the design team forgot.