Since the last update, I have found two bugs that absolutely need fixing. I am currently working on those issues and hope to have them solved soon.
As far as the beta testing, I did not get a good initial response and it was not enough to make it worthwhile to move forward. I continue to receive interest from people who want a ready-to-go device so I am working on that.
I am also working on making the RN-9090 up to 40% smaller in size so that should bring down some of the costs and hopefully make the RN-9090 more desirable.