IE10 supports lots of things - e.g. animations and text-shadow.

http://caniuse.com/#compare=y&b1=ie+9&b2=ie+10

I don't get how you conclude that the browser is holding the web back. I think its the people who resist upgrading a decade old operating system or moving to a different browser.

... or webdevs/companies who continue to support legacy platforms (and thus not force people to update). Clients are clueless anyway.

Anyone and anything still using IE6 should be taken out back and shot.

Whilst I'd love to agree, lots of people in my world (the UK insurance industry) don't get a choice.

When reporting issues I often say "Can you upgrade your browser?" to which I get the reply "No, it's what the IT department put on all of the machines, I use (BrowserX) at home though."

I suspect this is common.

Does that include the 5% of my customers that bring in over £100,000 GBP per year? I don't think so.

I don't know about you, but I certainly can't afford to throw away 100k every year.