I finally got Mfe to work on my white NOKIA N9. Initially it would ask me for a security code and required me to put one character and numbers, and after setting the security code it would give me an error and never synced. I was told its because my company requires all numbers security code for non-blackberry devices. Mfe is 2010. I bought Lumia 800 and told my IT that I have windows phone. They did something on the server side and now it works on Lumia 800 and N9!!!.

I still dont understand how iphone does it so well with corporate email. never had problem with that device.