I am currently running Exchange 2003 SP2 on a front end and a back end server in a windows 2003 AD setup. I have been tasked with setting up Exchange 2003 SP2 to work with mobile devices (phones, pda's, etc.). Is there a good guide on this or can someone point me in the right direction to get this started. I assume there will be software to install and firewall changes to make? Any information would be appreciated.