Apple has released iOS 5.1.1 which brings several improvements including bug fixes for AirPlay playback, iPad network switching, HDR photos, bookmark syncing and more.

This update contains improvements and bug fixes, including:

• Improves reliability of using HDR option for photos taken using the Lock Screen shortcut
• Addresses bugs that could prevent the new iPad from switching between 2G and 3G networks
• Fixes bugs that affected AirPlay video playback in some circumstances
• Improved reliability for syncing Safari bookmarks and Reading List
• Fixes an issue where 'Unable to purchase' alert could be displayed after successful purchase

For information on the security content of this update, please visit this website: http://support.apple.com/kb/HT1222.

You can find direct firmware download links here:

• iPhone 4S
• iPhone 4 (GSM)
• iPhone 4 (CDMA)
• iPhone 3GS
• iPad 3 WiFi
• iPad 3 GSM
• iPad 3 CDMA
• iPad 2 WiFi
• iPad 2 GSM
• iPad 2 CDMA
• iPad
• iPod touch 3G
• iPod touch 4G

As the same, jailbreakers should hold your step.