bid to become the first American carrier to launch a commercial LTE network won't likely have much bearing on the competitive landscape, but that doesn't make it any less impressive. We'd already known on the record that the company was on track for a launch before the end of 2010, but Samsung -- which is producing MetroPCS' inaugural 4G handset, the Craft -- is now saying on no uncertain terms that they're ready to flip the switch in the service's first two commercial markets, Dallas and Las Vegas, next month. Interestingly, MetroPCS won't confirm Samsung's statement, so we suspect Sammy just blew the lid off this thing before MetroPCS was ready. Whoops! Service pricing -- and device availability beyond the Craft -- both remain to be seen.