MoonEdit 0.14.1s

Tom Dobrowolski's multi-platform collaborative text editor.

Program features:
Cooperative multi-user text editing over the internet.
Every co-author can edit the shared document at any time, from any place, and at the same time! There's no need to send files via FTP or to compare documents when multiple users need to make changes to it independently.

Multiple text cursors visible on the screen.
Every user has their own color. Every cursor movement and text changes are simultaneously visible on the screen by all users.

Remote text editing without latency.
"ME" uses local prediction code - the same technology used in modern video games! You can use a dedicated standalone server to share a whole directory of text files. Remote users can then edit these files using the "me" client - at the same time. This functionality can be useful for creating websites directly on the www server - which is more efficient than editing files privately and then uploading them via FTP. You could even use "ME" to run a real-time text forum.

Users can view the history of changes from a multi-user edit session.
This is especially useful if you want to check out what other users have changed since you were away.

Keyboard typing sound simulation.
With this, you don't need to move your eyes to know when someone else is making changes to the document.

Built-in calculator and music sequencer.
To solve complex mathematical expression, just type it as normal text and press Ctrl+Enter. You can also enjoy most unique ME feature: collaborative multi-track music edit. Enter music score using simple text format, and play it using your own or built-in samples.