Best Buy is dipping deeper into the wireless world. The retailer has partnered with flat-rate carrier MetroPCS to make its handsets and services available in more than 200 Best Buy stores in 14 markets where MetroPCS offers service.

Consumers will be able to purchase MetroPCS service--which does not require a signed contract for activation--at the retail chain.

Best Buy has been trying to establish itself as a leader in wireless retail sales by expanding its wireless product lines and establishing cell phone departments in its U.S. stores. The retailer is also going to start selling the popular iPhone 3G in stores this month.

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