Here is the link to the video clip: http://www.25phut.net/uploadedvideoclips/viva.html
In conclusion I’d like to say that Windows Mobile phones are the best, at least, to me. Countless softwares are available out there. And, I can do some coding for my PDA as u can see in the video, I’ve implemented image processing (Canny Edge detection), written a program to operate a robot via WIFI, and much more… 
It is important to have a firm understanding about networking. Here, I only mention about some very basic knowledge.
- Protocol: is a set of rules and procedures used for communication. Computers on a network must agree upon a common protocol in order to communicate.
- IP (Internet Protocol) is the method or protocol by which data is sent from one device to another on the Internet. Each computer on the Internet has at least one IP address that uniquely identifies it from all other computers on the Internet. IP by itself is something like the postal system. It allows you to address a package and drop it in the system, but there is no direct link between you and the recipient. Though there are other network protocols available to the Windows network programmer, IP provides the most robust technique for sending data between network devices, especially if they are located across the Internet.