This may seem like a *very* strange request, but I'm curious if anyone has
every heard of a desktop client which will allow someone to access their
Exchange Calendar.

We're currently planning to migrate our campus to an Exchange setting.  
Because of the nature of the community, this will be a lengthy transition.  
The primary stakeholders in this endeavor have expressed that asking people
to run multiple calendar applications during the transition period is
unacceptable.

So we're investigating the idea of migrating the calendar first.   This
would require us to have a fully functional tool which would access the
Exchange Calendar as an interim solution between the date we do a calendar
cut-over and the date we get to any given customer's Outlook application to
update their profile and migrate their PST data.

Requirements:
* Must be a desktop app, web clients were deemed not appropriate
* Can't be a reader, users must be able to create and edit meetings.

Any ideas or leads would be appreciated.

Best,
Adam