I watched this presentation today from Google and got really excited.
If you have an hour and twenty minutes to watch this video go for it (everyone knows that I have a lot of time on my hands and can sit down and watch this, but you have a job and a family and are probably pretty busy so I understand if you cannot watch the whole thing).
Google is trying to revolutionize and change email and communication through the web. The guys that are developing this (two brothers actually) are the same guys that created google maps. I hope that shows you the creative minds behind this as well as the possibilities.
Read more here about google wave