Having recently moved from Palm to Pocket PC the only thing I've found that I miss is the 'week' and 'list' view options from the Palm's calendar (Datebook) application. It would show you a layout very similar to the Outlook desktop's week view where you could actually see a summary of your appointmenst for the week. The 'list' view let you view all your upcoming appointments in simple list in date order. The Calendar application in the pocket PC in 'week' view just shows coloured blocks where there's appointments. Sure, you can click on the blocks to get details of the appointments, but it's not nearly as user-friendly.
I've searched around the available Calendar add-ons but can't find anything that gives such a good week view, or a list view.