Last week I wrote an article on InnoDB plugin, which explains how to explore all the new features in the plugin along with comparing different row formats.
The article is live now from here:
http://www.innodb.com/wp/wp-content/uploads/2008/05/venu-anuganti-article-april-29-2008.html
Thanks to Ken Jacobs, who took the initiative to post the article on the web site.
Update: here is the nicely formatted version:
http://venublog.com/exploring-new-features-in-innodb-plugin-10/