All USB Storage products, Flash Drives, Thumb Drives, Hard Drives, and SSDs use a transfer protocol called “Bulk Only Transfer” or “BOT” protocol. This works reliably in Windows and Linux and other operating systems.
TI has a concept video demonstrating how their OMAP based phones could pay for a taxi ride. I found a taxi in Tokyo that supports exactly this kind of mobile payment.
Google iPhone 4S or iPhone 5 and you will get about gazillion hits, hopefully including this Blog
Why does it matter that Synopsys has more than 30 customers and 40 design wins for USB 3.0?
So the European Union has said, you must use USB as the charger for all cell phones in Europe going forward. In fact, the EU estimates that there are over 1 Billion Phone chargers sitting around Europe that are simply garbage.