Something just occurred to me: Why exactly does microsoft still put any time into developing IE? Is there any benefit to them besides driving users to bing and other microsoft sites? Based on their licenses couldn't microsoft take the latest copy of firefox/chromium and just rebrand it, wouldn't they get the same exact benefit without wasting money on development?
At least initially, I think it was to maintain an applications barrier to entry--think all those businesses keeping IE6 around to run their web-based applications. Also, if a broken web browser is the most used, Joe Sixpack will think that standard-conforming web sites are broken rather than thinking that the web browser is broken, and thus stick with IE.
On IE-9 it works the first time you try it but then the other buttons don't have any effect.
Just once I'd like an organization to have a corporate standard that mandates Chrome's latest version.