iPhone won't charge or connect to computer

I have a few month old iPhone. Recently, it's been acting glitchy when trying to connect it via the provided cable to either my computer or the wall plug. At first, it would take a jiggle of the cable for it to charge the phone, otherwise it would act as if nothing was plugged in. Now, it won't even see the cable, whether it's to the wall, to the computer, with or without the dock stand.

I have two cables that I have tried, and I've verified that the cables are OK because they both work with my iPod nano, it connects to the computer and it works with the charger.

Any ideas? I've set up a "tech session" with someone at the local Apple store tomorrow, but I'm afraid my battery might run down before then.

I've tried restarting it, and also resetting all the settings via the phone itself.

PACMAC said:

try checking the iphone on the bottom were you plug the usb cable..could be that one of your pins on the the iphones connections are lose ..or something could be in it preventing it from having a good connections to the usb plug..blow it out with a duster..

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I can't "see" anything loose, but I am far from an expert.

I tried blowing it out with the air duster, no dice.

Negative. No dropping, no water.

I guess I'll just see what they say at the store today.

Well, I got a replacement iPhone. The "Apple Genius" people were very friendly. I told them the problem and they took a look at it, tried it out, and confirmed that the pins had messed up, either lost their connectivity or something, who knows. Just a defect.