Danger developed T-Mobile's SideKick device, which lets users instant message, talk, send e-mails and access the Web, with a swivel screen that flips open 180 degrees to reveal a full keyboard. The SideKick was seen as having particular appeal among younger consumers.
Danger will become part of the Microsoft's Premium Mobile Experiences team, which focuses on consumer-facing mobile projects. Financial terms of the acquisition have not been disclosed.
--Mark Walsh