QUOTE(lch78 @ Feb 12 2011, 12:53 PM)
Nokia CEO has his reasons to enter into such arrangement with MS.
But if he is smarter, he should instead use all WP7, Android & Symbian concurrently and let the software developers fight for Nokia attention. Then Nokia will be the winner.
By entering into exclusivity deal with MS will limit Nokia options to expand. Most likely, it is Nokia who helps MS to expand in the early years rather than the other way round. MS intention is to make money through software updates like in the PC market. I still remember last time when I want to upgrade my pda WinMo6.1 to WinMo6.5, they wanted to charge me RM126 for WinMo6.5 OS licence!!
And if the scenario
(GREEN texts) you put up is true in the future, the real turkey will be you and other WP7 users, and MS will be the one dining turkey out of your wallet.

Nokia is not going to do that, symbian is weak, and Android is too common from different manufacturers. Since Nokia is left behind from other manufacturers in term of RnD and experience in Android. Furthermore, even in the same platform Android, Nokia is very hard to compete with its competitors, they can only compete in term of hardware features. This will cost Nokia a lot $$$ in order to gain the crown.
Besides that, I think Nokia is focusing on quality rather than quantity. if too many platforms for nokia to develop, it will cost Nokia a lot $ and the quality is still unknown. But I believe Nokia will still continue Symbian for mid and low end market.
WP7 is good choice for nokia.
why?
it is rare, motorola and SE don't even have a wp7 concept device. HTC LG and Samsung have it but the number of models is still limited. It means that there is still a chance for Nokia to compete with others in this platform.
the new wp7 provides smoother interface than Android. The limited features we knows such as copy and paste soon will be released too.
The update is controlled by M$ and hence you can get update directly from M$. I can see that M$ is also focusing on the wp7 quality. They are slowly releasing good quality features through update rather than throwing you a bunch of buggy features.