Take a look at our Gallery:
We update our gallery regulary to show spotted areas, click on some part of the world and see if your part is discovered, or if you can be the first to spot some cells!.
The maps are scalable vector graphics (SVG) maps. If you have trouble viewing the maps then you can try the SVG viewers available at Adobe.
If you are familiar with "Google Earth" and the GPX mapping format you can take a look here: GPX Stuff.