T-Mobile USA, the fourth largest U.S. carrier, announced today the rollout of a new service that allows people to make phones calls on cellular and Wi-Fi networks.

Here's the story from today's paper.

In celebration of the launch, the Bellevue-based company said it is giving away the T-Mobile HotSpot @Home phone and service for a year to the first 100 people who show up to the Sixth Avenue store in Seattle on July 3.

"People who really want the service should show up in their bathrobes," the company said.

In addition to the giveaway, all sotre visitors during the day can participate in a sweepstakes for a chance to transform their home into "the ultimate HotSpot."

The grand prize winner in each location will receive a T-Mobile HotSpot @Home phone router and one-year of service and a 40-in. flat panel LCD TV by Samsung and a $1,000 Pier 1 Imports gift certificate.

Seattle is one of 11 cities where this event will be taking place.