Ginormous panorama of inauguration

I just discovered an amazing panorama from president Obama's inauguration speech. This was done using the Gigapan robot. The amount of detail in the 1.5 Gigapixel panorama is absolutely amazing and worth checking out. Already people have discovered Yo-Yo Ma taking a picture with his iPhone. I have written about making high resolution images using stitching before, but this is of a different magnitude!