Good morning, Mr. Luigi!
To answer your question as to whether to purchase your iPhone from an Apple Store vs from the cell plan vendor, I would have to answer you...the Apple Store, if at all possible.
Seeing how many people here that do not have access to an Apple store, I feel their pain in having to wait weeks to get replacement phones when they cannot work around this SIM failure problem.
I can only imagine the frustrations they feel when having to deal with their vendors either over the phone or by e-mail. You know my frustations that I have had with having FIVE iPhones replaced over a three week period..I cannot imagine what my blood pressure would be if i had to wait weeks for a replacement only to have that SIM problem pop up again and again....
My number 5 replacement iPhone went about 4 days before it too showed the SIM card failure problem. I am over drivng 30 minutes to the Apple Store for another replacement. I feel very confident that if they replace number 5 with number 6 it too will fail.
But, I must say one thing here....I have absolutely no complaints with how the Apple Store handled my many problems. We tried every type of 'fix' for what was happening....I won't repeat them all here..they are all well documented in my previous posts. I cannot imagine that if I had purchased this phone from an AT&T store that I would have recceived this many replacements from them in a timely manner. I am not saying they wouldn't have.... I am just imagining that my problem wouldn't have been addressed as easily or in a friendly manner as it was by the Apple crew. But that is purely speculative on my part, OK??? :-)
I am just going to wait until the new OS comes out and will hope that the new firmware will take care of this problem. Unfortunately, I am not 100% confident that is solely a software problem...seeing that on many other forums people are "fixing" their SIM card problems with double sided tape, small pieces of cardboard, etc that apparently "fixes" a SIM card tray alignment problem. Those fixes have seemed to have helped out many people too. I just think that having to do any of this to a very expensive phone is caca..it shouldn't be happening at all and the non-response from Cupertino makes me wonder about Apple and wonder about my choice of phone.
99 out of 100 of my failure messages come when I disconnect my iPhone from its charging source, whether it is my iHome radio or my MacBook or just from the wall outlet.....about 2 out of 10 disconnects results in the warning messages popping up and the phone 'rebooting'. It is only during this short time that my phone it out of service... it always works after its reboot.
Sorry for the long reply, but that's my take on things from here. I'd definitely deal with the Apple store vs the cellphone provider....that's my long winded 0.02 worth. ;-)
Pat