If only chrome supported tree-style-tabs. Is there some reason why such an extension is impossible to port to chrome? (on the other hand, I do think it's impor

If only chrome supported tree-style-tabs. Is there some reason why such an extension is impossible to port to chrome? (on the other hand, I do think it's important to have a diverse browser ecosystem; else chrome is just the new Internet Explorer 6; and it will all be just a little bit of history repeating)