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My current is a 32GB 3GS (yes, skipped the 4's - wife has a 4S), so I'll be giving the 3GS to the kids to play with (mostly the 4 year old) so they'll leave my wife's 4S alone!
 
Back-up, use as ipod/pictures storage then give it/them to my sister/brothers.

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I'd rather put them in my collections than sell my working iPhone(s) for less than $100.
 
Old iPhone 4?

Are you talking about my new iPod Touch 4 with the upgraded camera?
 
giving them to the kids. i have a 32 gb iPhone 4, wife's is 16 gb. Have to figure out some interesting way to determine which kid gets the 32.
 
Going to do a restore on my 3GS and use it as a spare iPod Touch type device. Probably still use it for jogging too.
 
I sold my cracked iPhone 4S. I am keeping my iPhone 4 as a Mac media center remote control and sometimes iPod.
 
If anyone wants a 4S 32GB Black GSM , open box but plastic still on the screen. $350. Message me.
 
Since the new one is coming and most people got the iphone5 and a lot more are getting them, what are guys going to do with your old iPhones?

Keep it?

Gift it?

Put it in the drawer?

Sell it?

Put it in the drawer :/ Next to my 3GS and my old android failures.
 
Sold my unlocked iPhone 4 32 Gig for $350 and my wife's unlocked iPhone 4 16 Gig for $270.
 
I put in a request to unlock my 32 GB Black Iphone 4 officially with AT&T (out of contract), if approved I will then update it to ios 6, and sell it.

I figure since it's in great condition, running ios 6 and unlocked I'll get a decent amount for a 2 year old phone.
 
Im giving my white factory unlocked 4S to my mother. She will be really pleased, since she is using an white 3GS which is jailbroken and locked to an foreign carrier.
 
Gifting it to a co-worker I guess lol I volunteer at my local SPCA and I am giving it to a payed staff member. "Trying to switch everyone at the SPCA to iPhone:)"
 
Keeping my 4 as a world traveler & backup since I got it unlocked. Have a 3G with TomTom and a bunch of movies on it for road trips. Still upset that I cannot connect my new one to my car's video player.
 
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