Over the last several months Microsoft's Windows Phone platform has managed to gain a little momentum, but its adoption rate is nothing like its competitors. With Nokia being the largest adopter of the platform, they had to bite off quite a bit in licensing fees for the Windows based mobile OS.

Nokia released a statement yesterday that it still owes Microsoft more than half a billion dollars ($650 million) in licensing fees for Windows Phone. Shareholders need not start a revolution though as the total platform support fees that Nokia has received or will receive from Microsoft will exceed the licensing fees.

This means that the gamble Nokia took on Windows Phone will not be a loss at all, and we may even see some next-generation Windows Phones from the Finnish phone manufacturer. No information on when the $650 million bill is due, but we are sure that Nokia will pay in full right on time.