I got this cheap ($15) off eBay pretty much just for the nikon adaptall-2 mount. Took it out and tried it out. Has some very funky bokeh, but I think it's pretty nice for more landscape shots.
I just used Photoshop to stitch the images together. Really easy. Just take overlapping photos (30%ish each side) then let photoshop do all the work. As it was handheld the images did not all line up perfectly along the top and bottom so I had to crop it down slightly.