Your "upgrade" has just made your browser interface for email a lot less useful. By adding the starred/contacts area to the right, there's no longer enough room for me to read the content of my emails! I can at least collapse the left-hand area to give a little more room, but there should be an option to do the same for the right-hand area.

Ideally there should be a way to completely get rid of that new area because I'm never going to use it. Or at least let me resize it to make it smaller.