Maximum PC: Technology has a tendency to move fast, and as a result, your reign on top might only last a few days. Just ask Toshiba, which at the beginning of the week unveiled its 500GB Canvio Slim, a portable drive it proudly billed as the world's thinnest at 9mm thick. By the end of the week, it became the second thinnest, as Adata just introduced its DashDrive Elite HE720 external hard drive, which is 8.9mm thick. (A-DATA, A-DATA DashDrive Elite HE720, Hard drive, PC hardware)