Re: Pocket PC/Palm Overview
Search this forum, especially Strider's posts for that mobile users forum he keeps linking to. That would be one resource, but probably won't suit your needs sufficiently, as the site seems to be more of a how-to site rather than a what-can-I-do site.
I have a couple of .NET CF references, some of which are better than others. Roof and Fergus put our a pretty good book through apress (ISBN: 1-59059-095-3), and for database things, I often go to Tiffany (ISBN: 1-59059-119-4), but that is usually as a syntax reference, since I can never remember the syntax for INSERT and UPDATE commands.