Tension Software (http://pomola.com/) has announced NoteList 3.0, an update of the Mac OS X application for storing data in a free format using text and images with full word processing capabilities. It’s now “sandboxed” for the Mac App Store.

A sandbox is a security mechanism for separating running programs. Apple is requiring it for Mac App Store apps. NoteList 3.0 also lets you sort by creation date and modification date, sports an improved simplified layout and interface, and has enhanced filter and search functionalities.

The application is document based and can manage an unlimited number of documents. Any document can store an unlimited number of notes where any single note can be a full text in TXT format or a RTF text with images embedded.

NoteList requires Mac OS X 10.6.6 or higher. Tension Software is offering it at a special price of US$10 for a limited time at the Mac App Store.