I just stumbled upon this post by the InfoPath team.
Highlights:
- Enables automatic scheduling (and creating) of appointments by looking up Exchange’s free busy information
- Does processing of appointment accept/reject messages. Presents the free busy information in the same way Outlook does, all in the InfoPath view!
- Configurable scheduling window with built-in constraints such as “lunch”, “last” and “optional”
- Smart algorithm for picking meeting times based on the number of interviewers – blending brute force with a Monte Carlo/heuristics-based mechanism.
Nifty!