I got a Nuvi 750 works great, why pay extra $400 when you can use a ziplock bag to cover it and it is mounted on top of the dash very close to windscreen and I believe the rain would have to be blowing from behind me for it to get wet( thanks to Lamonster for mounting tip) . I can get a lot more mods with that $400 I save on a GPS, I also have the 2610 on my other bike and it is waterproof and can count how many time I have gotten caught in the rain.