Engadget - Samsung caught more than a few off guard with its US launch plans for the Galaxy S III, but primarily for what it didn't do. Whether it was a variant for AT&T, Sprint, T-Mobile or Verizon, the American versions had no arbitrary screen size bumps. No keyboards. Not even the customary navigation key changes that Samsung has implemented in US-spec Galaxy phones to avoid uncomfortable comparisons. Instead, the Korean electronics giant was dictating almost the entire device launch strategy to the carriers, which sounds a little familiar.