This should come as no surprise to anybody, here. But a nice article for you guys to store in your "evidence" lockers.
http://www.telegraph.co.uk/news/politics/9707029/Two-thirds-of-millionaires-left-Britain-to-avoid-50p-tax-rate.html
The results were actually worse, the article said that most of the people who were making the 1 mill did not leave but canged their behavior so they could declare less than the 1 million. So not only was the Treasury worse off, the populace did not have output that it did previuosly and was therefore worse off after the change.
Thanks for the share. No surprises here :)