Are you into - or thinking about getting into - mobile app development? If so, I'd recommend Windows Phone, and here's why: 1) Xamarin. As an indie gamedev with an XNA background, the ability to continue using my XNA knowledge (with Monogame) for WP8 and port to Android and iOS while still coding in C# is absolutely amazing. I can't speak for apps, but the latest version of Xamarin (v3) looks very promising for making cross-platform apps in C#, right up to the interface level. Moreover, there are very encouraging signs between Microsoft and Xamarin at the moment, so while there is currently a licence fee, things may yet change. 2) Nokia. Here in the UK, Nokia have been incredibly supportive of the efforts of small developers like myself, to the extent of even helping out with test devices. They have also been great helping promote my games on the marketplace. ... plus, as expected, the basic WP8 SDK tools can be downloaded for free, and it's only $19/year to publish to the Microsoft marketplace. And if there's an app you need that's not on the store - just make it!

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