Here’s the list of changes in iOS 6 beta 2 that have been discovered / leaked so far.
New Toggle for Shared Photo Streams:
Apple has added a new toggle that allows you to disable the Shared Photo Streams feature.
New Twitter icon:
iOS 6 Beta 2 has been updated with the new Twitter icon.
Siri gets Redesigned TweetSheet:
The TweetSheet inside Siri’s UI has been slightly redesigned.
Offline Reading List:
The toggle to enable or disable the use of cellular network to save Reading List items for offline reading was under Safari in the Settings app in iOS 6 beta 1, this has now been moved to the Cellular settings page under iCloud Documents and Reading List toggles.
Some of the blatant errors in iOS 6 Maps app seem to be fixed. The Maps app no longer confuses Greenland for the Indian Ocean, the Indian Ocean for the Arctic Ocean, the middle of Africa for the North Pacific, and the southern ocean for the North Atlantic.
Calendar Notifications now show the date and ending time.
Smart Banners in Safari:
Safari now displays the smart banners, which allows websites to display a banner at the top of the webpage to promote their app.
Revamped App Store
The Top Free, Top Paid and Top Grossing (and not Top Grossing Apps) tabs get the dark grey treatment in the revamped App Store app. It was light grey in iOS 6 beta 1. Thanks Jeff for the tip!
You can now take a screenshot using Assistive Touch feature. It’s available under Favorites. Thanks Victor for the tip!
FaceTime over Cellular:
The FaceTime over Cellular toggle seems to be working in iOS 6 beta 2.
Passbook gets a new splash screen, which provides more information.
Maps Becomes A little More Google Like: Full zoom in and out of the Mapps just like you can on Google Earth
New toggle for Wi-Fi networking under Settings -> Privacy -> Location Services -> System Services.
Do not Disturb:
When you enable or disable the “Do not Disturb” toggle, iOS indicates that the feature is activated with a moon logo in the status bar. In iOS 6 beta 2, the moon icon seems to be appear and disappear in an animated way.
The 3G toggle is back in the Cellular Settings
Sporadic Typing Noise Bug fix:
The keyboard no longer skips keyboard click sounds while typing at a steady, fast pace