Signs point to first Microsoft Surface tablet with LTE

Microsoft appears to be working toward adding 4G/LTE to its Surface tablet for the first time.
In an FCC filing (via Neowin), a device that appears to be a Surface product (see photo at bottom) has emerged, a possible indication that a new Surface model may be imminent.
The FCC documentation states that the device was tested with WindowsRT8.1, so that could mean it's the Windows RT-based Surface tablet, not the Surface Pro, which runs full-blown Windows 8.1.
And this comports with comments Microsoft made last year. "Windows RT will...be a strong platform for tablets that come with 3G/4G capability," Microsoft said at the time.
Also, in a reddit AMA in September of last year, Panos Panay, corporate VP of Surface at Microsoft and Surface team members, said that a future Surface product would have LTE.
The Surface 2 packs a quad-core Nvidia Tegra 4 processor, a 10.6-inch 1,920x1,080 display, and weighs 1.5 pounds.
It should be noted that the RT-based Lumia 2520 from Nokia -- whose mobile business Microsoft is set to acquire -- already sports LTE capability.
This doesn't necessarily preclude the Surface Pro 2 -- which is basically an Intel Haswell-based laptop in tablet form -- from getting LTE. We'll have to wait and see.
Microsoft declined to comment.