"After you've configured your conference call, you can invite people directly from within FreeConference.com's interface, at which point FreeConference.com generates an email invitation to each person you've entered...the email invitations come with vCal file attached that the recipient can drop into iCal or Outlook to add to her calendar."
Hmm, if only I could create vCal files. But from within Outlook 2003, trying to save an appointment as vCal or iCal yields the message, "The operation failed."
I still have Palm Desktop, but the "export vCal" option is grayed out. I'm happy for FreeConference though, if in fact what they have works as described.