I have developed numerous web sites including many providing services (such as public sector sites). I agree that it is right and proper to require accessibility for these sites.
I do not, however believe that there is an demonstrable RIGHT to allow access to a sight which is totally voluntary – such as a retail site.

I also think that new technical advancements such as ‘virtual world’ technologies and various interactive ‘web 2.0’ techniques are not readily accessible to current disabled access technologies like ‘screen readers’. A ruling that requires access for all based on the current state of assistive technology will mean NO ONE gets to use them and will, in effect shut down the evolution of the web.

This is judicial activism at it’s worse!