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

For feature descriptions and complete instructions, see the user guides for iPhone at:
	<http://support.apple.com/manuals/iphone>

For more information about iPhone, go to:
	<http://www.apple.com/iphone>

To troubleshoot your iPhone, or to view additional support information go to:
	<http://www.apple.com/support/iphone>

This update contains security content originally included in previous iOS Updates. For more information, please visit this website:
	<http://support.apple.com/kb/HT1222>