Guys, I just want to know, if there is new OS version available then how to get that on any Android running phone.
I know that we have to first download the source code them compile it on linux and port it.
But I think it's only applicable for some specific devices (as per google doc).

http://source.android.com/source/building-devices.html

so, is there any way to get it on Any other Android running device?

You people know that, today the biggest problem with Android is Firmware update problem.

waiting for your reply

Xda is very good at this, for porting android you need specific drivers.