GeoEye-1 is the world's highest-resolution commercial satellite sponsored by Google (the second will be launch in 2011 or 2012) it can take photos at a resolution of up to 41 centimeters. below photo taken at noon EDT on October 7 while the 4,300-pound satellite moving from the north pole to the south pole in a 423-mile-high orbit at 17,000 miles per hour, or 4.5 miles per second.
this satellite is actually designed for NGA (National Geospatial-Intelligence Agency) and the agency paid half of $502 million built satellite's cost.
it's somehow odd that even Google does SPYING on people, a search engine building spy satellites! with this you can not even be safe in your home knowing that Google in addition of other things may be standing above you right now.
having this wonderful res will make Google customers crazy (they can't have the best res, it's government restricted but a very good portion of it)
Source : http://blog.wired.com/wiredscience/2008/10/geoeye-1-super.html