Are you kidding? Desk sized resolution is great at 300 KM.
Yeah, great for sure. Desks the size of 10 inch 7/11 Big Gulp sodas.
http://www.cbsnews.com/stories/2003/01/23/tech/digitaldan/main537597.shtml
"at an astounding .6-meter resolution: sharp enough (and colorful enough) to see something just larger than a football."
-Current capability (resolution) of commercial satellite imagery circling the Earth-