Nokia makes out its just-announced RD-3 data modem to be the dream of every road warrior: global GSM / EDGE, global HSPA, global LTE -- a twenty-plus year heritage of technologies in the GSM family tree compressed into a single device, powerful enough to get you service from a dusty GPRS cell site in some of the world's harshest landscapes or Verizon's LTE trials in Boston and Seattle just the same. The only problem is that you can't have it. The RD-3 is instead being reserved for carriers and infrastructure firms building out LTE networks ar