From WP Central:
If you’ve been part of the Windows Phone community you’ve probably seen Joe Belfiore take the stage a handful of times the past few years. He’s more or less been the face of the Windows Phone team at Microsoft. However, his roles are changing within Microsoft. He’ll now be taking over app development for Internet Explorer.Microsoft's Joe Belfiore will now lead a team focused on Internet Explorer
It was in early September that we learned Joe Belfiore would be leading a team that’s focused on phones, tablets, and PCs. That move came about because of the internal shuffling currently being experienced by Microsoft as they move towards a devices and services company. Now The Verge is reporting that Microsoft will be leading a team that’s responsible for the app and user experience side of Internet Explorer.