Microsoft released a document describing their in-house upgrade from Exchange 2007 to Exchange 2010. Interesting stuff because of Microsoft’s geographical orientation, the volumes involved and Microsoft usually dogfooding their own products.
You can retrieve the document here.
On a side note, I took 70-662 today (still had to take that one). I passed, but what a dissapointment; are these exams getting easier or is that a consequence of getting more involved with the products related.
EighTwOne (821) 
I took the 70-662 & 70-663 exams as well. They did seem “easier” but I think being so entrenched in the product is what made the difference for me. This was the first time I basically had 6 solid months of using the product before taking the tests. It usually seems to happen the other way around.
Congrates on the exam.
LikeLike