iPhone Dead not responding to charge or buttons

Let me start out by giving a little background on my wife's iPhone. Last week, it went through the washing machine. I had seen threads before about what I should do, and as soon as the phone was discovered we immidiatley stuck it in sealed bowl of rice and left it for several days and did not try to turn it on or plug it in. Friday night we took it out of the rice and tried to turn it on, it was unresponsive, I figured it would be and that hte battery was probably dead, so we plugged it in, and low and behold it booted up as normal and worked perfectly. We saw no traces of water under the screen. She let it charge for a few hours and used it just fine all weekend (ipod function an all), until last night (Monday), when the battery starting to die, so we plugged it in before we went to bed. She gets to work this morning and the phone is unresponsive to anything. She plugged in to the usb port on her computer and the phone is not recognizing that it is hooked up. She has held down the home button along with the power button to reset it, and it is doing nothing.

I know that I can't take it in because it has been water damaged, I wanted to see if ayone has any suggestions. I would think the battery is fine because the phone worked all weekend with no problems, and held a charge from Friday night until Monday night.

When we get home from work tongiht, I'm going to try and see if iTunes will recognize it on our home computer, because she doesn't have iTunes at work, Im hoping we can do something through there.

Thank you in advance for any suggestions.

Thanks, I will give that a try.

I'm not sure if I mentioned it in my original post, but my wife said this morning when she took it off the charger it was on, but when she took it out at work it's dead, black screen and all.

So when I got home the other night, I plugged it into our computer and got nothing. It only seems to react when I plug it into the wall charger, but even then all I will get is the black screen with the apple after holding the two buttons down. I was able last night to get the "connect to itunes screen to come up" and as soon as I did, I unplugged it and tried it again on the computer, and I got nothing. As soon as I take it off the wall charger, the screen goes blank again.

I just don't quite get why its doing this since it worked fine for several days after letting it dry out in the rice.

Any suggestions?

I will probably go ahead any buy a replacement phone this evening, but I've seen on ebay that people are selling broken iphones for parts. Would I at least be able to sell of her old one for a little bit of $$?