The Boy Genius Report has been passed some information that shows T-Mobile gearing up for mobile tethering and Wifi sharing options for smart phone (Android) users. Effective November 3rd, customers will be able to purchase a $15 add-on package providing they meet a few requirements first. Users will simply need a 3G or HSPA+ capable handset and an unlimited data plan of $19.95 or higher. Available to both postpaid and Flex Pay customers, the add-on lets customer legally share their WiFi connection with other devices as well as operate as a modem for netbooks, laptops, and more. Head to Boy Genius Report to read the full details on the plan. Anyone gonna drop an extra fifteen bucks a month for this?