Inspired by the Internet Free/Busy protocol, we created a little tool, which lets you signal your friends if you are free, and what you feel like doing today. Y

Inspired by the Internet Free/Busy protocol, we created a little tool, which lets you signal your friends if you are free, and what you feel like doing today. You can invite friends to what you are doing, or RSVP really easy. It requires a Facebook account right now, but you'll be able to register without one starting next week.