By coincidence, my son was telling me the other day that in the US it is possible to get your iphone waterproofed, apparently they inject it with some gas? which makes the insides have negative ions or something, so it would repel water if it ever got wet. (maybe I should have paid more attention, I didn't realise there may be questions later).
So, all you have to do is find them and you have an end user!
I'll ask him if he has more details if you like.
I dropped my blackberry in my wine once, wish that had been wineproof!
Regards
Bruce