What can I clean my iPhone with?

[Jordanrracer]

I recently got a new (and my first!) iPhone. It's an iPhone 4 and I'm most likely going to need to clean its screen every so often in the future.. I've used this spray bottle that is used for my dad's camera lens on my iPod Touch 4g and nothing is wrong I presume but I want to make sure it's harmless.. (What I did was spray it on a tissue and wiped the tissue on the iPod's touch screen).

On the bottle it's named "Ultra Clarity" which "offers improved cleaning power on all lenses and coatings, especially anti-reflective lenses."

Also it says it contains "Isopropanol".

So what do you think guys? Is this okay to use to clean the touch screen on my iPhone 4?

Thank you in advance!!