Thanks to Rod Trent at myITforum.com for pointing out this comparison (from Microsoft) of the various versions of Windows Mobile. The table has 61 rows of various features, and then shows which versions of Windows Mobile 5.0, 6.0, or 6.1 (with touch screen or without) have the feature.
I only recently learned that you get fewer features if your phone doesn’t have a touch screen! And I’m supposed to know it all.
Now I just need to find a comparison between Palm Activesync and what you get with Windows Mobile…