Urdu might not be a Religious Language, but it could not be separated from Islam, Because it is the communication Language of the millions of the Muslims in the World. Secondly Urdu has the Largest Islamic Literature after Arabic n Persian......
Urdu could be a great source for the Unity of the Muslims.

Watch an American's Love for Urdu Language..

http://www.youtube.com/watch?v=zOEKkKClQH0&feature=player_embedded