http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9110625 Forrester's study examined 50,000 users, spread out among 2,300 companies. at the end of June 87.1% for Windows XP 8.8% for Vista 4.5% for Macs, 80% of those are Intel-based Macs. 0.5% for Linux 19.4% for Firefox 77.6% for IE, 63.5% of which is IE6. 2.4% for safari Flash Player Version 9 was on 97% of desktops, while Java was on 99.9% of them Cautious about the data: 1. this is business users survey, I don't have data to say how much % of computer users are business users. 2. Its unclear if this is world-wide representative data, or largely US based.