[Carla]

Siri is mostly entertainment IMO and moderately useful in certain situations (Calendar for me) but I don't use it a ton. Honestly, I feel like a goof randomly talking to my phone. RF would be the person to tell you if the difference is worth it (assuming he has played with a 4S). My first foray into the iPhone world is the 4S so I don't have much to compare it with besides an iPod Touch and it is certainly more impressive then that. If strapped for cash though I don't see how you could go wrong from what RF and others say that have them.