T-Mobile's Ultra Mobile has announced that it's removing high-speed data caps from its unlimited plans. But this isn't a complete slam-dunk.

Ultra Mobile is reclaiming the true meaning of "unlimited" by eliminating frustrating data caps. The T-Mobile-based MVNO also offers international calling, roaming in Mexico, and free hotspot use. To drum up support,

Ultra Mobile (NASDAQ: TMUS), the wireless provider with international benefits included on all plans, announced today that it's removing all high-speed data caps on its unlimited plans. This means Ultra customers can now stream,

MobileX is an MVNO offering mobile phone service on the Verizon network with an inexpensive personalized plan and a couple of bigger unlimited plans. MobileX launched with a focus on the user experience with an app that kept the customer informed and made it easy to adjust the service as needed.