T-Mobile US, which has been shaking up the cellular industry in the United States with a series of promotions and policy changes, today made several announcements intended to attract tablet customers to the carrier. There are two key pieces to the initiative: - LTE tablets for the price of Wi-Fi: Under Apple's standard pricing, LTE iPad models are priced $130 higher than their Wi-Fi equivalents, but T-Mobile's limited time promotion will allow customers to purchase an LTE iPad from the carrier at Wi-Fi pricing.If you’re stuck on Wi-Fi, you can now come to T-Mobile and upgrade to a 4G LTE-enabled model for nothing down and pay no more than you’d pay for the cheaper Wi-Fi-only model, with any postpaid activation on a 1GB or more mobile internet plan with no annual service contract. For example, pay the Wi-F