While the concept of real-time collaborative editing was famously demonstrated in 1968, MoonEdit was one of the first software products to fully implement it.
[2] The software used code from Ken Silverman's BUILD game engine, and employed client-side prediction to reduce the effect of latency.
Up to 14 participants could edit simultaneously, each having independent cursor positions updated in real time.
[4] MoonEdit was originally written by Tom Dobrowolski under the name Multi-Editoro, while he was a student at Gdańsk University of Technology, in 2003.
[6] Interest may have been lost due to the appearance of several web-based real-time editing platforms, starting with Writely (now Google Docs), around 2006.