Question : Android 2.2 on SBS 2008

I have 5 iPhones setup to work on my abs 2008 domain. Nothing special basic non tweaked setup of sbs 2008. Takes 2 minutes to setup iPhones yet I am unable to get a nexus one android 2.2 phone to have exchange support. Am I missing something. Note I DO NOT want to use touchdown or any 3rd party apps to achieve this.

Answer : Android 2.2 on SBS 2008

Turns out it seems to be a bug on Nexus as a friend has a HTC Desire running 2.2 and he was able to connect it no problem.  Google has offered a Dead on Arrival reimbursement.  thx for the help everyone.!