While i'm using Siri on my iPhone 5 running iOS 6.1 Beta 4, sometimes the screen shuts down and then it returns back.
while the screen is off using Siri, it listens to me perfectly but the screen its off and you can see nothing.
it's an iPhone 5 software problem :S
If you are a developer using beta software, you should be posting in the Developer Forums to which you have access. Discussions of beta software are not permitted in the regular forums.
Best of luck.
Retrieving data ...