Best Dual-Purpose GPS? in GPS technology and devices Posted December 18, 2009 I have one and its awesome. Its basically like any other Nuvi for driving but dont think of it as just a standard Nuvi like the others. It also has a geocaching mode like the Oregon/Dakota's do which is almost identical. It shows full descriptions, hints logs, etc... You can mark the caches as found/unfound and it is also waterproof! You can drop GPX files directly on the device so you do not need to use any other program like GSAK to use it. I was really torn between buying the Oregeon/Dakota series, the Nuvi 500, and the PN-40. I ended up going for the Nuvi for a couple reasons. First I wanted turn by turn directions with text to speech which it has. The Oregon/Dakota or PN does not have that. The second thing which pushed it over the edge is it comes with full US Street maps and Topo Maps. If you pick up one of the other Oregon/Dakota models (except the high end models) you have to pay another hundred bucks for the Topo maps then another hundred for the Street maps. If you look though my previous posts you will see a few other posts for me on it but I highly recommend it! I'm not able to answer any of the OP questions, but I thought I'd pose this question in the interest of extracting more information from MustangTim... which might be of interest to the OP. Anyway, I'm just curious, when you have it in the car, i assume it is mounted in a landscape orientation, are you able to electronically rotate the display 90 degrees to a portrait orientation like you would use a handheld unit? Thanks.