I ran down and picked up the new iPhone 4 for my wife to replace her old 3g. I have to admit that next to it my 3GS’s screen looks blocky and coarse. Reminds me of trying to watch a standard tv after getting used to high definiton.   As for the signal problem we haven’t been able to replicate it. I touched the black lines on the bottom sides and held it there for 60 seconds but still had 5 bars. As a matter of fact the signal seems really great. While traveling outside of town this evening we went down in a valley where I lost service and hers still had 2 bars left and she made a call but mine couldn’t receive it.   Just wanted to share my experience. It took me 40 minutes to get in and buy the phone. Half the time was waiting for a CSR and the other half was waiting on them to activate it. At 7 this morning there was a line of around 100 people so I just left and dropped back in around 4pm at which time there were only about 10 people ahead of me and many were there for billing questions. Only saw 2 of them buy iPhones. I had really expected them to sell out. Sure made me feel good I didn’t stand it line for several hours for nothing.   I will have to say though that after playing around with it the screen is great but if you have a 3GS it’s not really worth the upgrade. If you have a 3G though run out and upgrade. I did try loading some web pages on wifi and the iPhone 4 was about 20% faster than my 3GS.