I have been playing with Cademia for some time now and have been thinking on how I could best use it for my needs. For the 2D CAD world I would definitly need an output format I can feed into other applications. DXF export is something I can hardly wait for but I would also recommend DWG, maybe using OpenDWG libraries could help. I would also love to see other open standards such as SVG or Collada. Making PDF files with options from within the program would also be a lot easier than having to use a pdf-printer-driver. Although this program aims at the "hardcore" cad users I could imagine establishing paths to designers, technical illustraters and even game designers could prove to be rewarding and may result in interesting feedback and besides that is a gap not many applications bridge.