Dr. Bott and Case-mate have announced enhancements to Case-mate’s line of accessories for the mobile lifestyle, including products for MacBook, PowerBook, and select Treo and Blackberry PDAs. Following the success of the handle-it (US$49.99) for the 15-inch MacBook Pro in April, Case-mate has expanded the line to include custom handle-its for the 13-inch MacBook (in both black and white) and 15 and 17-inch PowerBook G4. Also announced are new Limited Edition Leather Sleevez ($99.99), which are crafted of Italian Pebblestone leather surrounding an impact resistant plastic shell. Black is available now, with other colors available soon. All of these items are available for pre-order now.