Google’s latest attempt to show that the only thing you need on your desktop is a web browser has now gone live here. It’s nice, too, as long as you’re using one of the supported browsers.
Mac users will need to pick something other than Safari. On the other hand, they can use the addresses listed under ‘calendar details’ to subscribe to Google calendars using iCal.
Most, if not all, of it has been working with me on Safari. Just click cancel at the compatibility prompt.