Download AgileNotes
AgileNotes 2.0 Demo (full functional except an abililty to save files)
To install AgileNotes just copy downloaded .CAB file to your Pocket PC and tap it to run the installation process.
Microsoft .NET Compact Framework 2.0 SP1 (free, from Microsoft site)
AgileNotes requires Microsoft .NET Compact Framework 2 SP1 (.NET CF) or above version to work on your Pocket PC. You can freely download it from Microsoft site within this link.