Truely Open and Freeware street maps

"OpenStreetMap is a free editable map of the whole world. It is made by people like you.

OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth."

Best of all it allows you a free license to use the data in your applications and websites and any other form.

Note for Cairo, Egypt it has much better street detail than Google maps.

http://www.openstreetmap.org/