Dekor Studio
   Cutting plotter and stained glass software. Products include vinyl, rolls, film, and application tape.
   http://www.dekorstudio.it/english/

Dragonfly Software
   Pattern resizing software and designs for stained glass. Includes library of four hundred free patterns and downloadable evaluation software.
   http://www.dfly.com/

GlassMate
   A CAD-like application to design leadlight and mosaic patterns from digital images.
   http://www.ezyglass.com/