This Spring we got the opportunity to work with the Huawei
model E176G 3G USB dongle connected to XCom Global for mobile data. This little device comes with a cap for the USB plug, the whole device is small enough to very easily slip into your pocket, and the whole package comes with an extensive manual and instructions that make its implementation relatively easy to set up and ultra-simple to use. I personally used this device during the entirety of Mobile World Congress
over in Barcelona, Spain, and have to say: it worked pretty darn nicely.