I would also recommend "washing" your device with deionized/distilled water as soon as possible after having dropped it into any other water, and if you get it to work again, backing up everything from the device.

My wife washed my ipod nano along with my Jeans one day on the normal cycle. The thing was soaked needless to say.

I took it apart somewhat, allowed it to dry for 4 days or so. Put it back together, and it worked fine!

I used it for about 2-3 months with no problems until it died. I took it apart again, but this time completely. Upon close inspection I realized there were heavy deposits and corrosion to the board... probably due to the hard tap water! (the water in my city is extremely hard, riddled with calcium deposits etc... my shower doors were made of clear glass, it is no longer clear due to the calcium deposits.)

The device was submerged for at least 30 minutes in the washer. I think having rinsed it in distilled water should not have caused further damage, but would probably have helped in reducing the amount of corrosion and deposits.

Just my 2 cents