The iPad has become a valuable tool for the mobile professional. It can be more valuable still, however, when swaddled in leather, partnered with a Mac mini and other Apple goodies and wrapped in a Mercedes-Benz S600, as Mercedes tuner BRABUS shows us with the iBusiness . The iBusiness is most definitely “the business.” The German-engineered, four-seater luxury sedan is the type of car for people who have drivers, and that’s a very good thing, because there’s no chance you’ll be paying much attention to the road in one of these babies unless you’re being paid to. Each car comes packed to the gills with outstanding multimedia capabilities, including two iPads in the rear seats with matching Bluetooth keyboards for each. The iPads are capable of controlling every aspect of the S600′s COMAND system, including the radio, navigation system and telephone, in addition to BRABUS’ own custom multimedia functions. Don’t think you’ll be limited to offline or 3G use, either, because the ca...