The iphone and Ipad seems to become more and more a useful tool for designers and architects.
SKTCH is a generative drawing tool which is now also available as a desktop version for the MAC. I think it would be useful to make a list with all the fancy designer tools for the iOS.
So in case you are a MAC or Ipad/Iphone user you can make your test-run here:
or check out the SKTCH flickr gallery:
links via Irina Bogdan / Facebook