Want to sync Outlook for Mac 2011’s Calendar with iCal? With your Google Calendar? With iCal? Sorry no such capability exists yet. Here’s what Microsoft has to say about this:
http://blog.officeformac.com/the-download-on-sync-services-in-office-for-mac-2011/
I checked with two of the services that handle sync to Google calendar – Busy Sync and Spanning Sync and likewise they have yet to announce any capabilities here. Ditto for Missing Sync, a third party application.
Be aware, that if you buy Office Mac for 2011 that you’ll be stuck manually updating your calendar – at least for now – unless you work in an Exchange environment.