Just a comment following from Mark Segal's review: the dimensions of the panoramic paper, 210 x 594mm, should be compared with standard A2, which is 420x594.
In other words, it is just A2 paper slit down the centre, on the long axis (if you did it on the short axis you'd get A3, of course).
This may not be much use for those in the US where metric paper sizes are less common, but in Europe pretty much any brand of paper can be made "pano" with a straight edge and a sharp blade...
