It's been increasingly tough to keep all of Samsung's Windows 8 tablets straight recently, with changing names adding to the confusion, and it looks like you can add one more variation to keep track of. A new Series 7 model, the ATIV Smart PC Pro 700T, has turned up at the FCC today boasting some hereto unannounced LTE connectivity -- although that doesn't come as a huge surprise considering Samsung's already delivered a non-Pro ATIV to AT&T. Of course
