I can kind of see where they're going with it, and I don't think the actual aim is a bad idea, it's more flexible and potentially has some uses.
1) It won't work for most users. In the long run, and with a lot of work, it could end up working about as well as the Lotus Notes email interface (which, after some significant improvements in v8, is as pretty as the "evil" part of the cast of "the hills have eyes"), but it still won't work for most of us.
2) Inflicting trials on people without their consent is bad
3) Not letting people opt out after you've totally screwed their pages without warning is <bad words> dumb
4) Most of us don't like it, and their refusal to acknowledge the overwhelmingly negative response is a step in the wrong direction.
<sigh> Can we have our old google back please? You know, the one that "just worked"?
Paris, because you need the best eye-candy possible after seeing the new google