Given a lot of the content some from offshore - the data pricing is key - say for 100g for an entry level plan. At the moment its $1 a gig say so add $100 on to the numbers being thought of. (calc'd from readily available information)
Oh, and a voice service will be extra as well from your retailer - if wanted - personally I would just run cells. Presumably retailers will be forced to offer LI compliant voice solutions if they offer then at all.