Changing settings values in an Android ROM I have just started to cook my own Android custom ROMs, and I am wondering how I can change the settings values in the "About" screen in the default Settings app. 

I have taken Cyanogenmod 7.2 and I am modding it. So how can I change the mod version, for example, from "cyanogenmod 7.2.0 p990" to, for example, "mymod 7.2.0 p990"?
You need to modify the ro.build.display.id= field in the file called build.prop within your ROM.