Techcrunch has an depth pre alpha post about the Google Calendar CL2. Also included are quite a few screen grabs as well. Some of the features are looking quite impressive including XML and ICAL settings for the Calendar and Private Addresses. You can choose how you want your notifications as well - email, SMS (there has got to be a cost involved for this?), or pop-up.It is only being tested by a reported 200 people so don't hold your breath on seeing this too soon.