The unlocked version of the Moto Z can be preordered for $699.99. The handset will work with AT&T, T-Mobile and other GSM networks. Two weeks after launching its latest Moto Z Play Droid Edition smartphone with Verizon on Sept. 8, Moto.com has begun taking preorders for the unlocked version of the Moto Z. The unlocked Moto Z, which sells for $699.99,...