The cross-platform developer advertising network AdDuplex has released data for the month of February which details some interesting findings and trends for Windows Phone. We've previously looked at data leading up and closing off 2012, but what about the start of this year? We've also recently covered Windows Phone 8 taking over Windows Phone 7 hardware in the US, but how does this reflect worldwide?

Compared to the report released early last month, Windows Phone 8 is slowly catching up with legacy hardware and if its momentum continues, we could well see a global takeover within the next few months. The chart below goes into country penetration and how quickly the new platform has been adopted by consumers.

France, USA and Australia are launch markets for Windows Phone 7, and all have passed the 50 percent barrier. As one would expect, emerging markets including Peru, Brazil, Mexico and Colombia are in a position entirely opposite to the markets in the above chart. 95 percent onwards for Windows Phone 7 is reported. Update penetration The Windows Phone 7.8 update is slowly being released with more consumers being able to enjoy the new start screen experience, but it's still lagging slightly with only 16 percent of Windows Phone 7 devices running the latest version. Microsoft has some way to go to get the remaining hardware up to speed. It's worth noting that rotten luck may be at play here with the selection of handsets used in the AdDuplex report in a similar situation surrounding the update. This may not represent the actual percentage or picture on the update roll out worldwide. But it's not all bad news. Here's a chart showing Windows Phones that have the Portico update: