While doing my routine check of the latest user experience and design blogs I ran across this gem from Smashing Magazine. It breaks down the inner workings of the new flexbox model provided by the latest CSS3 specifications. This is definitely a must read if you care at all about the flexible box model

Some of the key features worth keeping an eye on include

Automatically adjusting relative widths of children elements
Controlling the presentation of elements purely with CSS
Borders that span entire columns without ugly hacks

Like most of you I have done my fair share of battles with CSS floats, trying to get proportional formatting right, and doing complex mathematical gymnastics to get to a final goal. While this is still under development and I am certain subject to many iterations before it is properly supported at least it is a move in the right direction. I know that I for one will be playing around with it this weekend so I can add it to my toolkit.