I've only been using LineForm for an hour, yet I've find it to be a very competent drawing app! I find Illustrator or Freehand to be a bit clunky and confusing to use, but LineForm on the other hand is simple and elegant. I was able to take a few logo concepts and quickly draw them up in LineForm, much quicker than I would've in the aforementioned apps.

I'll definitely keep trialling this and see how it goes. My first impressions though are extremely positive.