The short answer is unfortunately no. And we do not have any plans of making a windows phone app - we need to focus all of our development capacity on iOS and Android.
You might think that because we have the back-end (databases etc.) up and running, then it should be relatively easy to also make a windows app, or give someone else access to our APIs and let them build it. But unfortunately it is more complicated than that.
First of all, we need to verify each phone model individually, to confirm that it works properly with our technology, so we would need to test a lot of windows phone handsets. And some of the core algorithms might need to be adapted to specific phone models (like we have already done for iPhone 4 vs. iPhone 5 and for some Android models). And this would put additional strain on our R&D, and we have plenty of stuff to do on that front already
Secondly, we are constantly building out our apps, and improving the user experience, so it would not be a matter of simply getting an app done, and then move on to something else. It would be an ongoing development effort. And there are still lots, and lots of things that we need to do on our iOS and Android apps, so we simply don't have resources to support a third platform
We are sorry, Windows fans, but we simply have to focus on the two big platforms