Apple iOS 5.1.1 for iPad 2 (CDMA)

This update contains improvements and bug fixes, including:
iOS 5.1.1 is out: fixes iPad network switching, Safari syncing, AirPlay, HDR
According to release notes accompanying the update, it contains the obligatory 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