When it comes to your device being the "world's thinnest" or not can be decided by a single millimeter. Just days after Toshiba unveiled its 9mm-thick 500GB external hard drive, ADATA has knocked a little more off its own enclosure and declared victory. It's releasing the DashDrive Elite HE720, a stainless steel USB 3.0 drive that measures in at 8.9mm-thick, and size is not the only department where it's making an end-run around ol' Tosh -- it's also $25 dollars cheaper, costing $90. In more mundane news, users who pick up t
