Personally for me, it just has to do with good hygiene. I can be like that not only with the iPhone. The thing is our phone tends to be the gadget we carry and hold the most. Considering the iPhone 4 is a slab of glass and fast food can be greasy and deals with using our hands, it is only natural to clean up before touching the phone again.
I try not to get OCD with my phone, but will clean the glass when it starts having that gooey feel. I only clean it once every couple days. But I do wash my hands with soap if I ate something before or if my hands got dirty from chores.
I try not to get OCD with my phone, but will clean the glass when it starts having that gooey feel. I only clean it once every couple days. But I do wash my hands with soap if I ate something before or if my hands got dirty from chores.