What non-copy arrangement? AFAIK Microsoft and Apple have fairly broad cross-licensing agreements, and that some of the items that Apple has been suing Android for infringing are implemented on Windows Phone as well.
1) Microsoft has a cross license deal with Apple. Samsung's license 'offer' from Apple included discounts when using licensed OSes and the example was MS provided OSes.
2) Said deal include terms requiring Microsoft to make products that aren't too similar to the iPhone although I'm not sure how that is defined.
