Google Wave

Google just announced a new communications tool they have in development called Wave.   From the description, Wave will integrate email, social networking, multimedia sharing (photos, maps, vids, etc.), online collaborative work, document creation/management, and instant messaging into one fluid interface and work environment.  The features look pretty slick and this may be an interesting way to change how people stay productive using the social web.  There are still a lot of details to be revealed and the demo looks like a proof of concept video, but the idea is very interesting.

I also like the name Wave, I think they are playing on wave-particle duality of photons and other quantum particles.  Maybe a subtle way to say communication and collaboration on the web has traditionally been like particles, fairly static and asynchronous, but Wave will change things to make it more fluid and wave-like.