I'm afraid of using my iphone in public?

I know it sounds kinda silly but in my area not too many people have smartphone but some do have blackberries I only take my iphone to shool because I have to call my parents to find out where I should go because the work late and when I'm waiting for a bus I'm afraid to answer my phone because I'm afraid someone will just grab it from me sometime I try my best to his the apple logo once I was using it and one man said 'hey nice phone can I see it' I just feel sared to use it in public

If you don't want to use your iPhone in public why not buy another cheap phone that you can take out and about with you!

Bye a cheapest one [such one that you can just make call with it. ] and use it for outside. And the iphone 4 home if you have problem taking it outsite.