IE 9 won't be good, as claims are from MS.
Same was the case when IE7 & 8 were released.. Nothing have changed much from IE6...other than the fact that with IE6 MS share is dropping for browsers...1st FF and now Chrome has hit them hard..
This would continue, as they would be giving IE9 only for Vista & W7...which itself has a limited user base (non-commercial) & commercials (companies) never upgrade browsers...:lol