When Microsoft and its partners don’t share actual numbers with us we have to go elsewhere to get our data fix. AdDuplex is one of those places where we can get an overall look at the current Windows Phone landscape in terms of which devices are popular (hint: it’s the Lumia 520). What is AdDuplex? It’s a cross-promotion network where developers can advertise their apps within each other’s apps. It also happens to have a Windows 8 network and what’s what we’re going to look at today. Which device is king of the hill when it comes to Windows 8?