Commenting is probably the best part of a blog. It is not only how you collect feedback about your writings, but also a way to improve your ideas since your reader might add more great info to the post. But currently, comments are restricted to your blog domain. Other solution like Disqus and IntenseDebate are trying to solve this giving even more options to comments. How about using a different comment system at your blog? This post will show you how to use Google Wave to handle comments.
All you need to to do is create a new blank wave, insert a title, and add wave-able@appspot.com to it. The bot will then generate a code so you can paste it on any webpage and have fun waving in your blog!
Waveable logo
Now, leave your comments on the wave bellow: