I had no luck as well at radio shack. They took my name down and told me that I would be on the list of people to call once they know when the phone would be available.
Pretty sucky since I would have gone to either att or apple store. I think I am going to wait now though since I will get $100 off my 8GB 3G iPhone. That will help bring the cost down to $100 plus $18 reactivation for new iPhone 4 16GB.
They did say now that they don't know wether they will have the phone on launch date or not. As much as I want the phone, I think I can wait another week or 2 if it means I save $100 bucks with my trade in.
Radio shack just call me. I got one! Only 4 out of the 22 stores in his district got a phone. He said he needed to try 250 times before it finally went thou. I got a black because there were no white at all available.