At TheGroucho, re: water protection.
A trick I used to use back when I cycled all the time with my MP3 players (and Walkmans before that) was to stick it in a ZipLock Baggie, seal it, & manipulate the controls through the plastic. The water can't get in, you can still use it, & it may even survive a dunking.
I don't know how well a SmartPhone screen would work through the ZLB plastic, YMMV, but it's worth a shot.
Biting the hand that feeds IT
