Keyzam (Focusing in avoid piracy)

I want you to show Keyzam a new security layer for every-type applications.

http://www.keyzam.com

The thing works like that:

You sell an app.
Then the user get a serial (Created by the keyzam system).
That serial is checked by keyzam and return a response to the app to know if the serial is valid or not. Obiously the response is signed digitally to avoid the "fake server problem".

Well this is at first a project in study, from a spanish young guy (Me). I can offer more security to the serial checks and the capability of lock or unlock any serial by web from keyzam webpage. For example if you find a serial in a P2P you can lock it fast and secure.

The system is really simple, the response is XML and i've done an C# example that could be converted probably to another languages. In theory everyone can use it.
And of course it's free.

I wanted to know if you like the project, or see it has capabilities or if you use it for your application.

Anyway thanks for all, (Sorry for the mistakes in my english, but I do all I can right now).

Do you more or less like it? Whats your opinion?

[ moved ]