We were seeing a lot of hype around Google Buzz today and we thought YQL would love to chew on the data. Fifteen or so minutes later we had an Open Table (the blog post took a bit longer :P ) wrapping the Google Buzz API. It's now live on GitHub: github.com/yql/google/google.buzz.updates.xml.
You can use it in your queries like this:
USE "http://github.com/yql/yql-tables/raw/master/google/google.buzz.updates.xml" AS google.buzz.updates; SELECT * FROM google.buzz.updates WHERE user="nakedtechnologist".