I like the new admin interface, however, I had t re-open an older version of web2py to figure out the meaning of the black and yellow circle (test, my first association was 'beware toxic waste'). Maybe a tooltip would solve this problem.
Furthermore I think edit/delete/test should all be buttons or all be icons not a mixture as it is now. In my opinion the current X stands out to much, just like the buttons in front of EDIT APPLICATION, MODELS etc. I also wonder about the size of the X icon, why 15x15 whereas 16x16 is more common. Personally, I like the icons webfaction is using, consistent styling and a clear meaning. These are not criticism, just thoughts that might help improve the admin interface. Kind regards, Annet.