I found it easy to get used to, but (like a lot of people on this board I imagine), I'm a technohead. I'd agree that for enterprise users who don't care for such frippery, Metro UI would need to come with a great big "OFF" button.
Microsoft have to think to the milions of people still using a desktop pc without touch screen and give a choise between metro UI and a classic desktop start. So, I think that metro UI have to be optional in final 8 too.
I think it not have to be but it MUST to be optional or will become a big fail. I'm an avid desktop user with a big screen, I will not change my personal tastes because MS wants it. Microsoft is killing most part of its potential consumers. Two versions will be better: one for Tablets and one for Desktops and Laptops with classical interface. The wolf is loosing the chase... beep-beep
^^ no problem. i am sharing that article with as many people as i can and i hope microsoft will have a look at the article and will implement those suggestions in windows 8 rtm. it would be really gr8 to see those options.