Google Wave is the next step beyond email. It allows for real time group conversations where every participant can view a complete history of the discussions. Simple email exchanges often omit large parts of conversations to anyone not on the email distribution list.
Future uses of Google Wave may involve collaborating on workarounds for software issues, real time seminars where participants can comment and add to the topics as well as technical support tracking where more than one company contact could have access to a complete history of the items that have been discussed.
Because Google Wave is in a limited testing preview you must first request an invitation from Google to participate (request).
If you are already on Google Wave you may connect to Wayne Schulz via email@example.com