I have to admit I thought Siri would be a feature similar to the implementation of voice interaction on Android. Well, I was so wrong I'm embarassed - Siri is a game changer, that's clear. Except that Siri seems to have problems with connectivity, and quite a lot. I'm on VZW but seeing the same thing right now via WiFi. Server overload? The same thing happened this morning for me, then had a period of several hours throughout the afternoon where Siri worked great.