Wikipedia
Panoweaver
Panoweaver is a panorama photo stitching program for Windows and Mac OS X developed by New House Internet Services BV. Panoweaver was created as a GUI frontend to Helmut Dersch's Panorama Tools. It features its own stitching and blending engine along with compatibility to Panorama Tools. Panoweaver supports telephoto, normal, wide angle and fisheye lens images into full 360*180 spherical panoramic image. Panoweaver also supports exporting 360 panoramic images into Flash VR, QuickTime VR, Java-based VR tours and swf, and publish on Facebook.
The 'free trial version' of Panoweaver is fully functional but creates panoramas with embedded visible watermarks.
Panoweaver pro also includes HDR and tone mapping support.