I may be cynical, but you can't always build something for everybody. Apple sell devices (laptops and desktops) with keyboards and other usability features. It's like complaining that a Ferrari isn't usable for people on a wheel chair. Just don't buy that car. Nobody complain with pasta brands cause they didn't pass the usability test with celiac disease people.<p>Disclaimer:
I'm an avid supporter of usability over the web, I'm actually working on a project to help designers/developers building more usable websites.