GigaOM, citing unnamed sources, is suggesting that T-Mobile's well-documented UMA plans
will come to fruition in Seattle and possibly another yet-to-be-named city (Chicago and the Bay Area are mentioned as strong candidates) on September 12 with other markets lighting up shortly thereafter. Given everything we've seen
, we don't have a compelling reason to doubt a limited launch on 9/14 is possible -- though if our
sources' accounts of battery life, voice quality, and GSM / WiFi handoff buffoonery on the Samsung T709 launch handset are close to accurate, we might have to take a pass on version one.