About the screen lock and lack of clock/status summary (received messages, missed calls etc), I kind of agree. But my first thought was this: how hard would it be to make a "screensaver" application which displayed all the stuff you wanted and had a lock function built in?

I.e. The application is launched when the device wants to dim the screen. When you tap the screen an "unlock screen" appears instead, having you enter a code or a gesture.

I'm not sure about the security level of something like this but with a bit of imagination and thought I'm sure something like that wouldn't be too hard to put together..? Fwiw there was already some talk about a gesture-based unlock application in some thread a while back.