I have been creating interactive panoramas since 2009 and these images were shot in 2010 with a Nikon D5000 and a 10.5 mm fisheye lens mounted on a Precision-360 panoramic ballhead.  There were 6 images shot 360 degrees horizontally, one upward and one downward (8 total).  The downward shot was handheld with the tripod removed and my feet were erased in post processing.  The stitching is what you see below.

To view the interactive 360 degree panorama click HERE.