Originally this application was a console application that I developed to get the music off of my iPod. After my post on transparent forms in VIsual Basic I decided to port it to a Widget format to make it easier to use and demonstrate what goes into creating a transparent Windows Forms application.
Screencasting (demo screen, screensharing) already works in Google Chrome. The technology allows capturing a window of the browser itself as well as windows of other applicaitons. For example, you can capture Firefox running in a separate window.
HTML5 WebSocket defines a bi-directional, full-duplex communication channel operates through a single TCP connection, this article discusses its fantastic performance, the WebSocket protocol principle and its handshake mechanism, and develop a WebSocket application in action (Team Poker).