Finally, a FREE and working desktop app to sync your outlook calendar with your google calendar! This is especially great news for windows mobile users (among any other applications that use an outlook calendar) cause now both gcal and outlook can sync up with your pda/phones! Now, if only there is a way to trigger a sync update when activesync syncs with a device..!
Direct link: http://www.google.com/support/calendar/bin/answer.py?answer=89955