MobilityDigest raises a very interesting question: did WM6.5 outsell WP7 in Q4? Because we don’t have sale numbers for either, it’s hard to judge, but here’s what we know: Microsoft shipped out 2 million WP7 handsets in that quarter, and not all can be considered sales. In Q2, WM6.5 sold 3,096,400 units, in Q3 it was 2,247,900. If that trend stays true, that would mean around 1.4 million sold in Q4, potentially more than WP7.
Now, the trend may not have continued — Microsoft put a lot of their weight behind WP7 instead of Windows Mobile, but it’s certainly not out of the bounds of reason. The numbers make a certain amount of sense. If true, it would be a major black eye for Microsoft, if their dead platform outsells their shiny new one.