Google Wave for the web has been one of the more popular ways to describe Muddy. I didn't see it at first, but I'll take it :)

Google Wave was the first thing that came to mind for me as well. RIP

That being said, this looks like a nice spiritual successor to it!

Yep! Glad to see I wasn't the only one who remembered Wave and what it had the potential for.

I came here to say this -- couldn't agree more. Very positive feelings and this nails it (and adds some stuff, too).