Move over, Seagate -- there's a new sheriff in slimtown. Not content to introduce the first 5mm thick 500GB HDD, Western Digital just announced that it's shipping the world's thinnest 1TB hard drive, the 7mm WD Blue. It features StableTrack which secures the motor shaft at both ends to reduce vibration and improve tracking, plus dual-stage actuators -- electromagnetic for coarse displacement and piezo for fine movement. SecurePark keeps the heads clear of the disk surface and increases shock resistance. It's the same HDD we caught in prototype form at IDF 2012 and we reckon the 7mm WD Black (hybrid) version we saw at CES 2013 can't be far behind. The 1TB model (WD10SPCXX) is priced at $139 with a two year warranty and is available to OEMs, integrators and consumers right now. We fully expect this drive to appear in one of the laptops / tablets launching at Computex this week, so don't miss our coverage.