my luck then (it has diven AND survived for more than an year)

-i was really lucky to get it quickly out of the water.
-prior to that i had noticed the case was built better. the interior is way more dustfree than my last phone (nokia 6600)
-perhaps the combination of rice-heat-rice (and a little shaking) has made every last droplet either come loose or evaporate by heat

either way what's really clear is
-take out the battery ASAP