Yes, it's another Charlie D article which makes a pinch of salt required when reading, but if his theories are correct it really does look like ATI are going to have little to worry about for a while:
http://www.semiaccurate.com/2010/02/...-and-unfixable
Meanwhile, ATI are expected to release a faster Evergreen card titled "Trillian" that is effectively a tuned 5870:
http://www.fudzilla.com/content/view/17720/1/
I've been waiting for ages for the price of 5870's to drop and it looks like my wait could be extended yet again.