Don’t worry if you haven’t gotten your invitation yet — they’re still being sent out, and yours still might be on the way. In the meantime, here are a bunch of great videos you can check out if you want to learn more about Wave.
First, we have the 1:20:11 video from the Developer Preview at Google I/O 2009:
If you don’t want to spend 80 minutes watching that presentation, here it is cropped down to 10 minutes:
15 Features in Google Wave:
CNet’s Rafe Needleman giving a brief overview of Wave:
Preview of iPhone version of Wave:
How the Live Collaborative Editing works:
How the Natural Language Processing works:
I hope that gives you a bit more to chew on. Keep checking your inboxes, and hopefully your invite will arrive soon!