Rounded corners

This is not my idea, and I have no use for it personally. But when I
thought about it, it is rather intriguing. In a word:
         TABLE {corner:1 solid black radius(5);}
Source: <http://buzz.builder.com/cgi-bin/WebX?14@179.yHr5adnDjw6^0@.ee7eb51/0>

If nothing else, it'll make CSS3 a stronger competitor to Adobe Pagemaker...