YouOS: A Web Operating System

https://www.youos.com/

What is YouOS?

"...YouOS and its applications run entirely within a web browser, but have the look and feel of desktop applications. An application's code and data reside remotely but are executed and modified locally. This model allows for a great deal of freedom. You can edit a document at home in a text editor and then go to school or work and instantly access the same text editor and document."

http://www.youos.com/html/static/manifesto/what.html

Erdekes... Majd kiderul.
Szintiszta javascript.