If you have a Windows Mobile/PPC device and just can't find that application that you need. You may want to check out this site.
Basic4ppc. This is an application to develop software for Windows Mobile/PPC devices. Basic4ppc is based on the .NET CF, so if you're familiar with one of the flavors of Visual Basic, you should be able to get the hang of it quickly!
I purchased it a few weeks ago and just finished creating an application for my Treo. That application that I couldn't find ANYWHERE! It has some quirks but all in all a useful program. Even better, it seems to be a 'young' application. The developer is regularly adding new libraries and is very active in the forum to answer questions!