Today, I've merged the new web debug toolbar for Symfony 2.1.
The look of the toolbar has been changed for the better, but the most important improvement comes from the fact that the toolbar hides some information according to the size of your screen. Or put another way, the larger your screen is, the more information you will have at your fingertips.
Here is how the toolbar looks like at different screen resolution:
But even if you have a small screen, you actually can still get all the information by getting over each icon:
Big thanks to Juti Noppornpitak who did all the hard work.