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The previous poster is grossly misrepresenting the Nokia-Microsoft WP contract.
Microsoft is not known for being a charitable institution in the least. So no, they are not "giving" Nokia any money. They are simply playing accounting tricks, so that it looks like Nokia is having an initial positive cash flow during the first couple of years of WP adoption.
But the contract is structured in such a way that in the end, Nokia's net payments to Microsoft end up being at least half a billion Euros more than whatever cash goes from Microsoft to Nokia. And that is even if WP phones fail to sell, if Nokia's business picks up they have to pump more cash over the baseline licensing deal.