The BlackBerry PlayBook might be small, but it’s slick, quick and all about business. This 7-inch ( 17.78cm) tablet is easy to carry, with its slim form, lack of weight ( 425g) and non-slip rubber back, and it’s easy to use. Users navigate by sweeping a finger over its touch-sensitive frame. Opened apps appear in a rotating panel, moved with a sweeping motion. Thanks to a dual-core 1GHz processor and 1GB RAM, the PlayBook works quickly. But the PlayBook is wi-fi only and users have to connect a BlackBerry smartphone to access mail, calendar or use online services.