Warning: This is definitely geek material. The people at Mozilla Labs have a marvelous vision and they've put out the first alpha release for the rest of us to poke at, play with and contribute to (if you have the skills).

Imagine being able to sit down at any computer anywhere and have access to your entire coding environment and collaborate with anyone else anywhere simultaneously. That's what Bespin does.

This video walks through Bespin and some of its features.

There's more information available at the Mozilla Labs site and if you're so inclined, you can register and take Bespin for a spin yourself. I should note that this is an alpha release so it's not ready for prime-time use but its potential for long-distance collaboration is really interesting.