This would be best for someone who has cell phone service with sprint or an employee of sprint to answer. I have a crappy sprint phone right now with a $75.00 upgrade. I am on a family plan & we dont have internet. For Christmas I would LOVE to get the new HTC Evo 4g, however I would have o get a data package compatible with the Evo. Does anyone know if its possible since im on a family plan, around how much it would be to buy it? & the monthly bill? & can one person on the plan just get internet or does every single line have to get it? Thanks to anyone who can help!