[ericd]

They seem to have fixed the speed issues, which was my main gripe with gmail up to this point.

F'ing terrible in the usability department, though, especially on the default super-spaced view - it makes it much harder to scan quickly, and lets you see half the number of emails in the same vertical space.

The wide open space with no border between panes is also really annoying. Adding a border-right on the folder pane via firebug/whatever brings it almost back to being bearable.