I'm definitely planning to get a new iPhone. I love the idea of ipod, phone, and gps all in one package, but like you I'm not so sure about mounting it out in the weather. Does it speak direction info? I'll be interested to see if it has the kind of routing and waypoint features found on a mapping gps unit.
2010 Triumph Tiger 1050se
2009 DL650A - sold
2005 DL650 - dearly departed
"I am enthusiastic over humanity's extraordinary and sometimes very timely ingenuities. If you are in a shipwreck and all the boats are gone, a piano top buoyant enough to keep you afloat that comes along makes a fortuitous life preserver. But this is not to say that the best way to design a life preserver is in the form of a piano top. I think we are clinging to a great many piano tops in accepting yesterday's fortuitous contrivings as constituting the only means for solving a given problem." - R. Buckminster Fuller