You could see the things that changed in ios 6, all 200 features and thats it, you cant see anything specific in iphone 5 such as siri was in iphone 4S. Bummer but well we're all waiting but i doubt anything to be honest, if apple doesnt pick up its pace, its going down, the S3 beats the iphone and having the same look isnt innovating.
I have read in one of the article that there is a one more option is available under the selection of "Sound",while setting a new alarm or editing an existing alarm under the latest iOS beta. Now,you will have option to pick a song from your itune playlist or previously selected songs quickly before confirming the alarm.