From Slashdot: "In 1999, Internet Pictures Corporation (IPIX) started
persecuting anyone who made software to produce 360Â° images. They succeeded
in forcing Professor Helmut Dersch, the creator of the GPL Panorama Tools to
remove certain functionality from his software. Well, they're at it again. They have
now forced him to shut his website. IPIX hold several US patents on remapping fisheye images, and first
went after US sites that linked to the PanoTools site. Prof Dersch says he may now have to distribute
his software using tricks similar to those needed by GIMP to avoid the Unisys GIF patents."
June 6, 2001