Okay, so... I've seen a TON of posts about people having problems with wifi and their sim, etc. after using Ultrasn0w to unlock their iPhone 3GS... Well, my reasoning for making this post is to suggest that something they had done during the process of unlocking their phone is the culprit. I have unlocked my iPhone 3GS and have no problems whatsoever with my wifi or my signal. Everything is working 100%.
Anyways, I wanted to see what you guys had to say about this.. How is your 3GS unlock holding up? :P