Already Nokia's shares have fallen & people trusted their brand name I have noticed in the mobile phone industries past,but from now on and the future will tell if they have made a mistake or not...Personally I would of rather had a stand alone idea for Nokia,but because of circumstances that we may not know of they decided to go for this kind of joint venture...Do not forget that google had a deal with mozilla's firefox group ( they make browsers ) & after several years google came out with their own browser & operating system...So I think in the case of google & mozilla,that google came out ahead for the better at the expence of mozilla by having a joint venture in which they help each other out & each may learn new technologies...So maybe Nokia has this idea to gain knowledge of operating system ideas,while Microsoft has the learn some of the hardware fundamental ideas from Nokia...Anyway one of them will come out better then the other and time will tell...