[motion]

If I'm renting a bike somewhere, plugging into 12V is usually not an option, unless its a tourer, which I'm not going to be riding anyway. I'd really like the functionality for when I head out on foot, exploring a new city, in addition to general road maps. I guess the 4 hour battery life might be OK if I'm judicious about turning the unit off every time I use it, but what a pain. I can't believe something like this doesn't exist in today's world, seems like a no brainer. WiFi on a smartphone might allow you to download the local google maps, which would be held in memory, then you could zoom in/out/pan as needed during your stay. But, I've tried this with my iPhone in various international locations and it really hasn't worked. The maps application always wants a new connection to load data. Anyone confirm if this might work on another smartphone with a 4" screen?