One needs to examine what an eco system is before we decide if Elop is on or off target. One thing is for sure its NOT the operating system. Deal with an eco system partner will likley include horse trading in the following areas (with my personal thoughts)

-Dev Platform : Qt Quick with its cross platform capability v strong
-Music : CMW coverage reduced, Ovi music looking good, but could trade with Amazon or Zune?
-Videos : Nokia just bought Voggler
-Maps : Navteq is on a roll here
-Social : Need to do a deal with Facebook, who dislike Google
-mail/Chat : Facebook or MS$ could be good options, Yahoo relationship will be parked.
-Share : OVI just shut this down, so in need of a deal
-Contacs/Calendar/PIM : MS$ Deal?
-Office : Deal Already done with MS$
-Apps : OVI making strong headway, and is ahead of Android in languages, and reach. Apps growing nicely so no need to change course, other than to push harder on Qt.
-Operators : Need to sort out US. Where is the Qualcomm deal done 12 months ago?
-Retail : Amazon for content?

Have I forgotten something ?