Is there a piece of software which lets you turn “anything” into a dynamic reorderable list?

Question

I could write this myself, but I want to know if it already exists.

Basically, it must fulfill these criteria:

• To reorder items, the user must never have to manually renumber them. That would be annoying, and it doesn't scale.
• Can read from a range of data sources (e.g. a database, a directory on the file system, a text file, another list)
• When the original data source changes, the list must automatically change with it (possibly with confirmation, e.g. if a list item would be deleted)
• Ability to persist the list ordering in some fashion
• Graphical display of list items (so that they can include e.g. images)

Optional extras:

• Ability to modify data and write back to the data source (other than the ordering information)

Answer 1

Database packages can read from other database package formats as well as CSV textfiles, and can display images. Rows can be easily ordered.

Lists of files in a directory can be converted to line separated values with "dir * /b".

As for dynamically updating, it's probably possible with some scripting depending on your package choice. I think this will be the hardest requirement to satisfy.

Please clarify your quesiton;

• What does it mean to "write data back to the source" when that source is a directory?
• Will any concurrency be required? Eg source changing and database saving out simultaneously?
• What format is "other list"?