I just compiled the new webkit version with the GREAT box-shadow property added. However, this new addition breaks the border-radius command partially. I found that the border radius command (all versions, including top-left, top-right, etc.) are not implemented unless an actual border is specified! I used to be able to draw a <div> with a background color and a border radius. I've made a test page to illustrate this. What is interesting is that if a box-shadow is applied to the regular <div> then the shadow does have the proper border radius?
Created attachment 12290 [details] test page showing various <div> with borders test page showing 4 different <div>'s with border radius specified. After the addition of the box-shadow property, only the <div>'s with specified border's have the border radius.
Hyatt fixed this in r18655.