From CNET: MSN is having a make-over, and it's coming to a phone and tablet near you too. Microsoft is rebranding the Bing apps under the MSN and bringing them to Windows, Android, and iOS devices.
MSN, short for Microsoft Network, began in 1995 as an online service for Windows 95. Over the past two decades (!) it has evolved into a portal for various Microsoft services like Hotmail, Outlook and MSN Messenger, as well as news, entertainment updates, videos and other content. Microsoft offers MSN in 55 countries and claims an audience of 425 million people.