Hello. I've had a SonyEricsson W600i mobile phone the past two years. I enjoy my phone but keep holding out to buy the V2.0 iPhone. My question is does the current iPhone give you the ability to hide your caller ID/phone number? My SE W600i is able to do this via in the 'settings' menu-I can show or hide my number at will by making the proper selection. Since I usually call family and friends I usually keep my caller ID/phone number to 'display'. Recently, I had to turn it off caller ID/phone number as I had to call several of my patient's from the mobile phone (as opposed to calling them from the clinic). I work in the field of Mental Health; so I didn't want my patient's to have access to my telephone number. Does the current iPhone have this ability? Cheers!