Here is an article on how to mod yer electronic gear for rugged use. The section on waterproofing cellphones is especially interesting to us yakkers.
http://www.popularmechanics.com/tech...o/4327743.html
Seems to work. If it holds a vacuum, I expect it to be waterproof. You'll need to break it open for a recharge, but a quart sized plastic seal bag makes for 2 applications. Cheap and effective. just sharin info