Apple have just released iOS 4.3.1 Software Update or iPhone.

This update contains improvements and other bug fixes, including:

• Resolves bugs related to activating and connecting to some mobile networks
• Fixes image flicker when using Apple Digital AV Adapter with some TVs
• Resolves an issue authenticating with some enterprise web services
• Fixes an occasional graphics glitch on iPod touch (4th generation)

Products compatible with this software update:

• iPhone 4 (GSM model)
• iPhone 3GS
• iPad 2
• iPad
• iPod touch (4th generation)
• iPod touch (3rd generation)

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