Van, et al,
I ordered it after reading a lot of user reviews on the web. Found it on-lie for about 250 + shipping. It is a lot like the platium version but more waterproof, floats and has some basic bouy and nav stuff built in. You can also load a 64MB memory card and downlond quite a bit detailed Nav and or highway information. Also as a 12v cig power adaptor and nice dash mount. This is strickly a backup and something I will carry around when out with others (to target good fishing spots!) I will also take in the car as well. Want to couple it with some auto/nav/mapping software I use to check out the voice commands...("turn left NOW! kinda thing)
I was on a charter boat a year or so ago on a serious togging trip fishing off of some wreck and when the capt finally positioned the boat right on top of them (took two or three times to get it exactly where he wanted it)...all of the paying customers whipped out their handhelds and logged the spot. I felt under-gunned.
I like the way this one fits in my hand better then the garmin units. Both seem more-than fine for a backup.