1. Is their a patent? 2. Is said patent being violated? It doesn't matter what other companies are doing or have produced. I was in a case with Honeywell and GM. Honeywell went after GM for infringement of their patent. You can Navigate using the Stars, Loran, plain map, looking out a window but the only thing that mattered is Honeywell holds rights to GPS Navigation and made a valid claim against GM and how they Navigate using GPS. Stern or Lyman,SRP can just sit and wait, if they feel they have a valid claim make one. If I was JJP I'd get cousel ASAP. I guess it makes sense why SRP touts the color changing LED and how they were first!!! It matters!!