“StatCounter’s July numbers show that Firefox and Chrome, when combined, now account for over 50 percent of web browsing. Technically, Firefox now has a 27.95 percent share, while Chrome has 22.14 percent. Combined, their 50.09 percent easily beat IE’s 42.45 percent.”
PIE makes Internet Explorer 6-8 capable of rendering several of the most useful CSS3 decoration features.
Check out: CSS3 PIE: CSS3 decorations for IE.