I've got that problem in my Lund (can't swivel my graph because of the windshield).. Drives me crazy because I'm constantly asking the oldman how deep it is, lol! Once I get a new Terrova installed with US2, I'll be dropping a Humminbird 747c upfront and will never have to ask the oldman for depth again
As long as you don't destroy the iPad in the process, sounds like a killer way to get data up to the front of the boat.