Not sure. As dan stated above.. plus adam baxter, myself, iain rennie. I know a lot more have snapped, but as mentioned they seem to be the most popular of all carbons, so it's likely that you will hear of more faults.
Just so we're clear, I approve of carbon products in a big way. Yes stuff is snapping, but so are ally parts. My rockman forks have lasted longer than my try alls and trialtechs.