okay first of all kids
take a picture and show me how much got under the screen. a drop or two? or more?
if it was JUST water...
leave it in a really hot place for a few days (got an appliance that runs hot or makes a lot of heat? try on top of the back of your computer monitor if it stays on all the time).
I've had 2 Gs die on me because of this. the first G got soaked by rainwater, I left it on top of one of my hot-running VCRs for 2 days and it dried out. the only thing is, it would never go past the "align screen" even if you stayed there all day. you'd have to tap all over the screen or turn it off to get past it, but then the screen isn't aligned right and you have to relearn how to use it with the screwed up alignment.
trust me if it's gotten wet it won't align right again. who knows it may work but for me it didn't... it'll never be the same. how do I know? well I still had the first rainwater G (with its stepped-on screen) around and it had an okay-condition touchscren which I wanted to swap with my phone, that has a really bad scraped up one (abusive previous owner). I swapped the "touchscreen" part of the screen.. and it didn't align. 15 minutes of "align wizard" and it never did. so it's in the trash, and I had to put my scraped up one back on.
my second G (brand new and 2 weeks old I might add) got less than half an eyedropper full of tea under the screen. THAT didn't dry out, so i gave up.
if any water got into the keyboard then you're looking at a couple of dead keys most likely.