From the update: iOS 4.0.1 Software Update for iPhone This update contains bug fixes and improvements, including the following: Improves the formula to determine how many bars of signal strength to display Products compatible with this software update: iPhone 3G iPhone 3GS iPhone 4 Anandtech has analyzed the changes in the 4.0.1 signal “fix”. I [...]
Apple’s iPhone iOS 4.0.1 Update Released is a post from: Sean Walther's Blog