The Surface line of 2-in-1 tablets have changed over the years, but two things have remained constant: it’s hinge design and its lack of cellular connectivity. One of those changes today as Microsoft finally announces the launch of is long-awaited LTE-enabled Surface Pro model. In fact, it actually comes with LTE Advanced, a.k.a. LTE-A. But before you go scrambling for your credit card, you should probably know two things. One, it won’t be available until December. Two, Microsoft is aiming it at its business customers only for now.