NW.js, previously known as Node-WebKit, is a combination of WebKit and Node.js.  Node.js allows JavaScript to access the underlying operating system in much the same way as traditional languages, like C.  Unlike traditional WebKit browser implementations that prevent web applications from accessing the underlying OS, NW.js has no such limitations. NW.js is able to run on OS X, Windows, and Linux, making it comparable to other multi-OS frameworks, like .NET and Java.  Normally, having a framework requirement...