Well, we knew this was going to happen.  T-Mobile officially announced the launch of 8 additional 4G cities early this morning.  In case you didn’t catch the late afternoon story last night, Detroit, Mich.; Grand Junction, Colo.; Harlingen, Texas; Lafayette and South Bend, Ind.; Montgomery, Ala.; Roanoke-Lynchburg, Va. and Youngstown, Ohio all launched this morning!

T-Mobile now has a full 80 cities running the 4G HSPA+ supercalifragilisticexpialidocious network. Check out the full press release below for full details.

T-Mobile Network Expansion:

T-Mobile today announced the expansion of its 4G mobile broadband network to eight additional metro areas including Detroit, Mich.; Grand Junction, Colo.; Harlingen, Texas; Lafayette and South Bend, Ind.; Montgomery, Ala.; Roanoke-Lynchburg, Va. and Youngstown, Ohio.

With typical download speeds that are on par with or faster than competing 4G technologies, T-Mobile customers with the latest 4G devices in more than 80 metropolitan areas around the country can now enjoy blazing fast Web browsing, uninterrupted video streaming and quicker downloads at no additional cost.

Continuing the aggressive expansion of the company’s 4G network, T-Mobile is on pace to expand its HSPA+ footprint to reach 200 million people by the end of this year – with plans to move to faster speeds (42Mbps) in 2011.

For more information on T-Mobile’s network, please visit http://t-mobile-coverage.t-mobile.com/coverage.