Well, I don't live in Seattle, but I thought I'd submit some random feedback here...
1) Replace ActiveSync. Even v4.0 still can't be shut down by "normal" users - you have to go through Task Manager.
2) It takes 4 taps to rotate screen orientation. Why isn't this a required hardware button?
3) Add the concept of "profiles" to non-phone Pocket PCs. For example, if I'm in a meeting, I want to be able to quickly switch to sound off, WiFi enabled, and dim screen brightness.