I shouldn't even comment on these anymore and i can't be bothered to write all what Ollila and others have said already, but we wont be seeing wp7 inside Nokia phones.
I wont say ever but for the next 3 years, no.

It's funny that this guy have been working for Microsoft only for 2 years and hold many other positions as well but suddenly he is Steve Ballmer himself. It also tells me that people have no idea as how many agreements with example chip makers and work for services and software Nokia would need to do to make wp7 a platform for Nokia.
Something that Nokia has been working for years for Symbian, Harmattan and work done for qt altready.

Mike, Eldar Murtazin started rumour about N9 coming out in q1 rather than q4 this year. I wouldn't be too worried yet as he said the same about N900.