Absolutely. I've found that's my litmus test for defining whether a patent is valid or not: "are you making money from developing this idea?". If the author isn

Absolutely. I've found that's my litmus test for defining whether a patent is valid or not: "are you making money from developing this idea?". If the author isn't pursuing the product, then he's just defining a general idea and letting others actually work out the details. Just think about that: the people who would actually do the work and get the product out are preempted by someone who is just sitting on his arse. How is that encouraging innovation?