I found a Dev Edition Verizon 32GB
Can I use it directly without any activation or unlocking?
I don't care about 4G/LTE. I only care about 3G and H+
All verizon LTE phones are sim un-locked now (FCC requires this as part of the licensing deal for the 700MHz spectrum). The trick is to find a local carrier that matches the phones radio bands, or to buy a phone from a carrier whos radio bands match your perferred local carriers as closely as possible. The Wikipedia page lists the variants of the Moto X and their radios.