The 'jessica on vacation' on the calender at the sharepoint server, is it planned to get this like 'ajax style' so you see it updating while reading the calender? So I know it at the moment it is set and don't need to refresh to see if she is availible at a timeblock.
What happends when I send a calender outside (the non outlook users part), with the html calender true email, does it gets updated in some way? So when I retrieve the html calender and read the invitation 2 days later, I am able to pick a time which is actually still availible. And not need to pick a few before I am able to have a free slot.
Like if I was your client and you send me one of those mails, and for some reason I am not able to respond directly. When I got the time to read mail, I expect you send me the thing with the current state. It comming true a dynamic channel not true a static (paper) channel.
I see a tabletPC in the background, are there any improvements specialy for the tablet?