Windows Phone 7 has become Nokia's "principal smartphone strategy," MeeGo is getting transformed into an experimental "learning" platform, and Symbian... well, maybe you should sit down for this one, Symbian's being killed off. There's more to the strategic alliance unveiled today, including the WP7 Marketplace subsuming the Ovi Store and some Bing and Ovi Maps interaction, so why not press play above and let the men in charge tell you about it?