Life becomes much more easier when you have unlimited data plans on your cell phones. With companies such as At&T and Verizon who discontinued their unlimited data plans over the last few years. But it's T-Mobile who starting from September 5th will be bringing back full, unlimited 4G data for $30 a month and even though T-Mobile is yet to launch 4G LTE network it's current 4G HSPA+ offers network speeds close enough to the ones offered by Verizon and AT&T's LTE networks, covering most of the country.

T-Mobile will continue to offer their current data plans, which slow down speed once you hit 5 or 10 GB, though neither of the new unlimited plans includes mobile hotspot mode. The country's fourth-largest carrier has been loosing subscribers in part because it is the only national carrier not selling Apple Inc.'s iPhone. But with their new unlimited plans things surely will move in their stride. T-Mobile has plenty of capacity and is losing its most valuable postpaid customers. Unlimited data, for T-Mobile, is all about shifting the mix from prepaid back to postpaid, using some of that extra network capacity it has to grab more reliable subscribers.