This might be useful if it were accurate. Just from first glance: they say Firefox doesn't have touch support, yet it's had multitouch support for over a year: http://hacks.mozilla.org/2009/08/multi-touch-firefox/
Heck, here's a video of one of the Mozilla dev's side projects using touch: http://vimeo.com/17456088
Also, a searchable one - http://caniuse.com/ also includes compatibility with mobile variants.
IE9 supports WebGL, according to that site...?
only thing that comes to my mind - also the same reason i will ignore html5 and css3 for the next 2-3 years:
the microsoft IE team are a bunch of losers who screwed everyone over since 10 years and it doesnt stop.
nice, remind me again why IE6 is on that list? Its like beating a zombie horse, we know its dead, undead even.
If you look closely, IE7 and IE8 are missing most of the features and even IE9 is missing a lot...