There are several options to add Twitter to Google Wave. I have tried both and they both work fine.
The main point I guess is for Google Wave to become a one stop shop. You will read emails, chat, video conference, do group meeting, send invitations to events, tweets etc…all from Google wave.
A very simple way to tweet from Google wave is:
Use TwitterGadget in Google Wave
1. Login to your Google Wave account
2. Select ‘New Wave‘
3. Select the ‘Add Gadget by URL‘ icon
4. For gadget URL, enter: http://www.twittergadget.com/gadget.xml
5. Click ‘Add‘ and you are done!
The second option is to add a participant to your Wave. (email@example.com). It is that simple. This guy shows it with screenshots: http://daggle.com/add-twitter-google-wave-1424
Have you try tweeting from Google Wave? Is it something that you consider doing?