Google Wave Developer Preview at Google I/O 2009

This is why Google stock is at $400+/share. You don't have to watch the full 80 minutes. Fftteen or so ought to do.

Wave is a natural progression, I think, for the now tired, under-advanced email capabilities, incorporating IM functionality and other cool stuff. It's also going to be open-source, which will enhance further development.

I'll let you get back to that dinosaur, the printed sales aid.