Today Google released Google Calendar (after months of hype and fake screenshots), which is a pretty sweet application from what I can tell with just a bit of playing around. It promises integration with Gmail, even able to grab appointments out of emails and allowing you to add them to your calendar. At the moment it looks like calendar is actually separate from Gmail, but it may become integrated. It's easy to add events, and the "Quick Add" is pretty smart, recognizing my query "lunch with my bro 1pm next wednesday" and sticking it on the correct day. And you can share either your whole calendar or just specific events with people, email invites to events and get the comments back in your calendar, create multiple calendars, have event reminders texted to your cell phone, and more.

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