TL:DR; Use Pocket Maple Reader to read Maple and Maple Professional files on Pocket PC handheld devices.
Download Pocket Maple Reader Shareware - Rating: 3.58
Fast, convenient and nice looking information management system, featuring hierarchical textual and visual data representation regarding your contacts, tasks and notes.
If you use Outlook for your scheduling, you should use this little program, it shows your appointments and tasks every time on your desktop.
Ultra Recall is a personal information management (PIM) / knowledge management (KM) application for Microsoft Windows. It helps you capture, organize, and recall all of your electronic information across all the applications that you use.