We’d barely finished reporting that Nokia is to adopt Windows Phone 7 as its new mobile OS of choice before a concept shot of new Nokia/Windows branded handsets appeared online. Related links MWC 2011: Best mobile news from MWC Nokia Windows Phone 7 tie-up official Best Windows Phone 7 Phones Windows Phone 7 hands-on review According to the Engadget exclusive, the handsets in the photo are indeed concepts born of the Nokia/Windows marriage, although at the moment there’s no word on release dates or specs, with Nokia CEO Stephen Elop and Microsoft CEO Steve Ballmer saying “when there’s news, there will be news”. All we’ve got to go on so far is the large touchscreen and tell-tale Windows-branded three-button set up. But what will become of the current stable of Nokia Symbian handsets? According to Nokia, Symbian and users will be “retain[ed] and transition[ed]“, which probably isn’t as sinister as it sounds. From where we’re sitting, though, Symbian’s future looks bleak – even if Nokia’s is neon pink and blue. Via: Engadget Check out the T3.com MWC 2011 microsite for all the latest mobile news from Mobile World Congress 2011.