If it ain't broke, don't fix it -- words Panasonic has clearly taken to heart with the Toughbook 19. It's time for the rugged, 10-inch convertible tablet to get its annual refresh and not much has changed visibly. Instead, the company gave its internals a boost with some Sandy Bridge goodness and slapped a new TransflectivePlus screen in this military-grade machine for computing in direct sunlight. Impressively, the Core i5 found inside is not of the ULV variety, it's a standard voltage 2520m powering this completely sealed, fanless design. Additionally, the Toughbook 19 now c