Yes, may I add my strong strong support for this feature.
As a prosumer / business user, synchronization with PDA is absolutely #1 on my list. Ajax and all that jazz is cool, but if it don't synch, it don't make it into our environment.
I don't see much info on collaboration, and how users with iCal, Outlook, Evolution would collaborate effectively across this app. That would be #2 on my list
Thanks!