Just yesterday, I created a new sub-domain to WPThemes.Info
Its called http://playwith.wpthemes.info
As you can guess, it will act as a playground for me, to test the themes for WP 1.5 before releasing it.
It may also serve as a ‘live preview’ of the themes, that people can really see what I am talking about.
Check it out when you get a chance.