With the recent released of iOS 5 Beta 2, there are new feature this update brings that we already know like the ability to sync wireless, but there are still many other features to be found out.
Here is a list of new things iOS 5 Beta 2 brings that has been discovered and we know already:
-It adds WiFi Sync to Mac only for now (source: 9to5mac)
-iCloud logo becomes silver in settings
-Lockscreen notifications got an update from the UI department