DoubleTake is the "nano" of stitching software. Drag & drop your images onto or into DoubleTake, arrange them, and check the overlaps. When you are done - save and perhaps copy and paste the result to iPhoto.

Use DoubleTakeFor panoramasWhen you can not get far enough away to fit everything in the viewfinderAdd surroundings to a shot of an event which has now passedMake large images suitable for the "Ken Burns" effect in iPhoto or FotoMagicoPhoto montages
This version works on