Siri disappeared on my iPhone 4S!
This is the weirdest thing ever. I got my iPhone 4S two weeks ago, Siri was working well enough (I'm in Italy so no location-based stuff but still). But recently I noticed that Siri has disappeared from my iPhone! If I long-press the Home button it just gives me the voice control. If I go to Settings, there's NO Siri option in General, or wherever. I recently changed my SIM card and maybe that caused it, but can anyone give me any pointers?
iPhone 4S, iOS 5.0.1, Windows 7