In his Dec 3, 2007 conference call, Jeff Parker issued a challenge to Steve Cripps:

"And, as I said in my response to the Barron’s article by the way, I have an
open invitation to Mr. Cripps, who is well known in the industry; under the same terms we do
with OEMs.

Come on down to Florida, love to meet you, be happy to have a face-to-face meeting, happy to
show you the technology, happy to talk to you about it. From what I’ve seen, you’ve written some
marvelous publications, and I think you’d be very, very excited to see what our team has been
able to develop."

We have talked with Steve (i.e., Dr. Cripps) and he is willing to visit ParkerVision and evaluate/consider whatever Jeff wants to show him, in order to provide a more complete analysis of ESP technology.  However, he will not sign an NDA that would prevent him from publishing his findings, because that would defeat the purpose of a third party evaluation, namely, to allow the public to know the truth about the novelty and value of ESP technology.