Today Nokia and T-Mobile USA surprised us all with the announcement of the T-Mobile exclusive Nokia Lumia 810.

Besides some slight cosmetic changes like being shorter, slightly thicker and a different bezel design, the Nokia Lumia 810 is virtually identical to the Lumia 820, the biggest difference being the 42Mbps HSPA+, dubbed ‘4G’ by T-Mobile.

The Lumia 810 will also feature exchangeable covers with the option of a wireless charging cover, it is quite a bit less curvy and rounded than the Lumia 820, but it will still be available in all of the same bright, eye-catching colours.

Some more in-depth specifications and pricing has not yet been revealed, but it’s expected somewhere during November 2012 right after Microsoft officially launched Windows Phone 8 to the mass market.