hi i use the 0.2.1 version of the plugin,
i think that Yoast have wrote the better SEO plugin for WP out there,
i have found some things that they don't work or don't work correctly,
the first, is that in the Posts/Pages columns when i make changes from the "Quick Edit" button after i hit Update the posts list hides the content and i need to refresh the page to see them again.
the second, is that the Dashboard widget don't removed after clicking the "X" button but this is not a real problem cause i/you can remove it from the "Screen Options" settings.
i'll try to comment out the code that builds the Column in the Posts/Pages cause it breaks my screen with long titles...but i think that an option to activate or disable the WP SEO columns is needed.
but in general the plugin is perfect!
thanks Yoast for this contribution to the WP community!