I've had a TomTom One and a Garmin 255W...and they're great devices...each with things I wish the other had. Bought both as each represent one of the two mapping systems technologies available. Anywho...I'm an electronic "gadget" collector from many years back and wifey, after 38 years of marriage..knows and accepts that...anywho, with that background, I'll get to the "disappointment."
Wife and I just had our 38th wedding anniversary and for a gift she got me the big 7", $599 specifically for truckers, WorldNav GPS. Bless her heart.
I used it for a couple weeks alongside my Garmin...what a disappointment...doesn't tell ya to turn until you're right on top of the turn...doesn't show graphics of exits until right on top of it..in most cases past the ramp...anywho...it's got a lot of great bells and whistles on top of being a GPS...but, as a GPS it has a looooonnnnggg way to go. Also, really didn't like having a big 7" screen...too big to mount up in the windshield area...
Well...Garmin's supposed to be coming out with a new one for truckers very soon...may already be out...gave back the WorldNav unit to the truckstop wife bought it at...but, they don't give cash back...just replace, so when they get the new Garmin for trucking they're gonna give me one in trade. And it's only 4.3"
The new Garmin Nuvi 465T can be seen here.
Garmin 465T