In his memo, Elop said a lot about the importance of ecosystems and getting to market quickly with a new or existing one.

So why has he joined with Microsoft, who don't have an ecosystem, a but an OS very, very much in its infancy? Maemo 5 is more developed than WP7. Elop and Ballmer also said today they've not got plans for a tablet on WP7. So WTF was all the talk about ecosystems if all he's done is sacrifice Nokia's own 'immature' system to go with another company's more immature system?