Microsoft has been careful to avoid publicising the cost to manufacturers of licensing the Windows Phone OS for each handset - but an executive from ZTE has now revealed the charge for each licence.
Amazon Echo Review: "Alexa, why are you so cool and frustrating at the same time?"
amazon echo promo
Windows 10 for phones news
Windows 10 for phones
All the latest on Windows 10
Windows 10 promo
The YotaPhone 2 is probably the most interesting phone since the iPhone 3G - Review
All the news from Mobile World Conference 2015