I have the Nuvi 500. It has all the features of the 260 plus the ability to go to walking mode. Also has a geocashing feature that allows you to download information from the website. A lot of people will tell you you need two units, but this is not true, my Nuvi 500 will gets me there every time. Two units might be better, but not necessary. I like the fact of having one unit and just removing it from the windshield, switch to walking mode, and start looking for the cashe.