How to clean my iPhone?

It's my dad's...

I just don't feel like rubbing the surface. Will it hurt and wear out the sensitivity? Or else how?

And, is there any way to ship an iphone to Sri Lanka? Coz I wanna get one too. Dad got it from the US. Help!

try this.
http://www.youtube.com/watch?v=qg1ckCkm8YI

thanks!