Kleiner Perkins already funded this company... in 1999. This will be a hot technology... in the year 2000. Unfortunately it will promptly go bankrupt in 2001.
http://money.cnn.com/magazines/fortune/fortune_archive/2001/...
http://money.cnn.com/magazines/fortune/fortune_archive/2001/...
Like regular verbal communication (instead of messaging) happens over same time. For us thats like water to fish. Implementing a time server function to email systems would create a sync'ed communication system.