Multi User Calendar Plugin

I am looking for a plugin that will give each user their own calendar that they can edit on the front of the site without having to go into the backend.

We use Theme My Login to give the users a front end interface with their profile. We want to add a calendar control to their profile to show their availability, so we also need it to be able to be embedded into their publicly viewable profile without having the person viewing it be editable.

I have been looking but have not come across a plugin that will provide this. Any help would be greatly appreciated.