Microsoft is already creating a safe, fenced-off area in Windows Phone 8 through Kids Corner, but it's expanding that to include nearly everyone through Rooms. A rough parallel to Groupme, Rooms lets families, friends or companies share calendars, chats, notes and photos without letting any prying eyes get a peek. And if others aren't following the Windows Phone way, they can still view some of the content from another platform. There's no doubt that Microsoft really hopes its communal addition is a way to squeak out an extra phone sale or two from those who like to stick together.
For more, check out our Windows Phone 8 event liveblog!