I hope the revisions to the UI include removing the tap and hold mechanism for simulating right clicking. This is one feature of the current UI that drives me nuts, because it's so inconsistent and I have to try several times to get it too work. Not only that, but frequently the menu shows up where your finger or stylus are obstructing your view of the menu. It'd be great if the menus just popped up when you select the item, and in a place where they won't be obstructed from view.

I also agree with the comment that titlebars are unneccesary. Again, they seem to be a vestigial carryover from desktop UIs. This would free up more space for status bar icons.