XUI is a Java and XML RIA platform for building smart app's. Swing, AWT and other widget sets can be used on a range of hardware. XUI's modular framework can help many aspects of application development. NetBeans and Eclipse are available.
Podcast client for Windows CE mobile devices (i.e. Pocket PCs and smart phones) with a clean user interface. Supports RSS enclosures and OPML category listings.
Universal Synchronizer allows you to synchronize contact database in your PocketPC or MS Mobile Device with any other contact database. E.g. with Thunderbird address book.
google calendar sync app for WM5
Uses XML, simple XPath, .net compact framework 2.0 to retrieve google calendar feed, check against the appointments stored on the phone and adds/updates/deletes accordingly.