Had my first proper real-time wave today and although I was a little skeptical at first I must admit it really worked very well and surprisingly was actually alot of fun!
Im honestly not sure whether it will take off and become the ‘next big thing’ or not, but I hope so! I would love to write all my blog-posts, emails, msn conversations in one convenient place and have realtime updates an backups.
Anyway, if you are lucky enough to be in the preview add me mike.cann@googlewave.com and we can have a chat about it 
EDIT:
As a quick edit, i have just installed a new plugin for wordpress that lets me embed google waves, so if you have google wave you should beable to see the following wave in full:
3 Responses to Google Wave
Sandro October 15, 2009
Sure was a lot of fun afterall. Takes a bit getting used to though
admin October 15, 2009
Hahaha ye, tho I kinda enjoy the “threaded discussion” makes you feel like there is some sort of structure to your conversation.
So you want to contribute something more worthwhile so you can reference the conversation and perhaps come back to it, edit your thoughts and improve them..
jonnysparkplugs November 12, 2009
Does this edit the wave?