Well, we've been waiting for a PlayBook packing something more than WiFi to rear its enterprise-friendly head, and there it is -- sort of. Search Google for "Sprint PlayBook" and the number one (non-sponsored) result is a page "introducing the BlackBerry 4G Playbook tablet," which means the companies are right about on schedule for that promised summer release. Clicking on the link just redirects you to the Sprint homepage for now and, sadly, price and exact ship date are still anyone's guess