Another carrier is trying to make waves this week amid all the iPhone hub-bub: T-Mobile USA took the wraps off of its T-Mobile HotSpot AtHome service, which it has been testing in Seattle for the past few months. The service allows T-Mobile USA subscribers with UMA-enabled cellular phones and a router to seamlessly hand-off mobile calls from the cellular network to the WiFi network when at home. The 8,500 T-Mobile HotSpots at Starbucks across the country will also allow users to automatically switch to WiFi when in range.

The service works with the Nokia 6086 and the Samsung t409, which each cost about $50 with a two-year contract and a $40 calling plan. The unlimited calling via WiFi is an additional $10 a month.

For more on T-Mobile's new fixed-mobile convergence offering:
- read this press release