The iPhone may not come with built-in NFC, but that hasn't stopped it from finding itself at the center of plenty of NFC-based payment projects. The latest comes courtesy of US Bank, which is now kicking off trials of its new Go Mobile service in Salt Lake City, Utah, and Portland, Oregon. As with similar efforts from RBS and the Commonwealth Bank of Australia (among others), this service relies on an iPhone case equipped with an NFC chip (iPhon
