[ADBrown]

As far as I'm aware, it will only read PDF and Sony proprietary files. No Word or plain text. Also no PIM functions like calendar.

A Pocket PC is a handheld computer running Microsoft's Windows Mobile operating system. Minimum capabilities for a Pocket PC (or "PPC") are PIM functions (personal information management, such as calendar, to-do list, notepad, contact list, and voice notes), web browsing and email, music and video, and office documents (Word, Excel, and PowerPoint).

Some models of Pocket PC also come with other features such as higher resolution screens, GPS navigation, built-in cell phones, wireless capabilities, etcetera.

With any Pocket PC, you can add a variety of third-party software such as games, maps, tools, utilities, etcetera.