TmoNews is reporting that some unlocked iPhone users may be picking up T-Mobile's 3G network in small areas of the Pacific Northwest -- specifically limited pockets in Nevada, Utah and California -- due to spectrum reallocation under the 1900MHz band.
Most unlocked iPhone users are relegated to 2G due to most of the T-Mobile 3G network running on the AWS spectrum of 1700MHz/2100MHz. We're not exactly sure what they're reallocating the spectrum for, however, multiple reports have surfaced from Howard Forums detailing a jump in speeds and, more specifically, the 3G network indicator popping up in the statusbar on their unlocked iPhone.