Google Wave does seem like a great collaboration tool, I don't think it can double the price. I think it looks great, but I've never used any other online collaboration tools, so I don't have much to compare it to. There could be other products out there that do similar tasks, but from Google's presentation they are acting as though it's completely revolutionary. I could definitely see it's usefulness in my job, but I doubt my company would ever use something like this, especially with the sensitive nature of our information.
Anyone with more experience with this type of thing have any opinions on it?