I don't like the rotation of home screens. There are widgets which are simply too wide to fit in portrait, so they would either be cut off or have to be shown in landscape. In any case it just doesn't seem elegant to me, and I can't really see it happening like that.

I would keep it very simple, either no homescreen at all (making it the phone as described in my previous post or some static image), or perhaps a single portrait homescreen which can have its own widgets.

The dashboard is anything but a simple problem, and so far nobody seems to have come up with a satisfying solution to what happens to the thumbnails if the screen is rotated while the dashboard is showing.

I don't see the point of voting yet, when nobody has come up with a completely thought-through proposal yet. There are issues that have been pointed out in great detail before by people like ragnar, who do UI design for a living. It's not productive and a bit disrespectful to just glance over those issues.