Microsoft's decision to launch its Windows Phone 7 on AT&T's GSM handsets while delaying the debut of the operating system on Verizon Wireless will serve to harden the battle lines between the two largest U.S. mobile phone carriers.
Microsoft Windows Phone 7 To Debut With AT & T
Verizon Wireless is expected to offer a CDMA version of Microsoft Windows Phone 7 early next year.
Sep 17, 2010
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