Hey Tom,

I will follow-up with you directly but our company, www.rhodeone.com, is based here in RI and provides hosted Exchange 2007, SharePoint (WSS and MOSS), and OCS. Mobile device support (real time email, calendar, and contacts) is free for Windows Mobile and iPhones. There is an additional charge for Blackberry but that is also real time. 

Take Care,

-Rick 

RhodeOne provides shared and dedicated hosting solutions for Exchange, SharePoint, and OCS. We are also housed right in RI... www.rhodeone.com