First off, thank you for the lifeproof case review. You've inspired me to investigate a similar solution for my iphone. The main advantage over the liquipel has to be the shock protection.
Like GR6RR mentioned, the liquipel coating also makes for an interesting solution. After an email exchange with Liquipel, it's confirmed, same day service is available! How, they just opened an office in Santa Ana/Irvine and they offer same day drop off service.
http://www.liquipel.com/contacts/
I think my new strategy is to get my iphone with the Navionics App coated. Then I'll get one of those cheap cases that offer an integrated ring for trinkets. Instead of a trinket, I'll add some type of float instead. Hmmm, lots of options now.