Sprint offers a product called Business Connection Personal Edition (BCPE). It is a software made by 7systems. It is a mail and calendar redirector for outlook and it will allow mobile access to files in a specified folder on the host pc. It does cost a monthly fee but is often a good solution when IT does not want to get involved.
Emoze is a free solution that will do much of the same but i have had device stability issues when using it. BCPE is fairly reliable and i do not experience any device instability when using it.
both solutions require software to be installed on the pc that has the outlook account setup on it. Also, the pc must be on and BCPE/Emoze software must be running for the service to work.
Hope this points you in a usable direction.
