Cool little application has just been released at the app store, "Topo Maps" - see: http://chezphil.org/topomaps/
It's a really simple little program (which the author plans to enhance in future versions). You select the quads you want, then download them to the phone. It takes a few minutes to download each quad, but once you do it is stored locally on the phone so no cell service is needed to access it. The maps are a scan of the full USGS map complete with collars, so they aren't seamless.
Not a bad little program at all for $4
, and it's the first mapping application I've seen which actually stores the maps locally instead of loading on demand over the network. Here's a screenshot - you can zoom in farther than this, or way out to show the whole quad. The quality of the scans is terrific - much cleaner than terraserver.
It's a really simple little program (which the author plans to enhance in future versions). You select the quads you want, then download them to the phone. It takes a few minutes to download each quad, but once you do it is stored locally on the phone so no cell service is needed to access it. The maps are a scan of the full USGS map complete with collars, so they aren't seamless.
Not a bad little program at all for $4

