Now that I have more memory available since I changed the page pool (link), I have settled on a Today Screen environment which is working well for me. The Today screen plug ins I am using are: Spb Mobile Shell 1.5, SBSH Pocket Breeze 5.2 , Battery Status, and Device lock (included with Windows Mobile). I removed the tray a while back (see link).
From top to bottom; Spb Mobile Shell (tabs left to right, Home, Dial, Weather, and Time), SBSH Pocket Breeze (in collapsed mode), BatteryStatus, and Device Lock.
My Spb Mobile Shell Now screen which is set to display at power on. From here I can go directly to the weather, messages, change the sound profile, and open Pocket Informant. Unfortunately, the PIM plug in does not allow me to open up the appointment directly.
You can view the progression of my Today screen layouts by using the "My WM Today screen" category. Category indexes are in the right column.