I'm using a Nav740 with Igo 8 on it I am considering a 7" model with FM transmitter. I see your top 5 includes the dimension033 7".
I assume by your thread in the Igo forum that it will work ok with Igo 8 software. I also see it only has a 128b ram how good is it in your opinion.
My 740 is pretty good at not getting far behind the location I am at, and the speed of operation is pretty good. I also have both types of maps on it.
What I like about mine is it has 16 million points of interest which I have not found on other GPS's The points of interest are part of the original Nav 740 package, but they don't make GPS's anymore. I want to copy them over to the new one. Do you think this is possible with the dimension033 7"?