Nothing on the BICEP2 front as far as I can tell. So let me turn to off-topic matters and tell you about another interesting letter that turned up from the dusty recesses of my old, cobwebbed files. But first, a little back story.
The following diagram shows the subject at issue:
The following is a link to a paper that is more specific than the one I sent to Arno Penzias (see below):
A NEW MODE OF RADIO COMMUNICATION (pdf, 3.6 MB)
The following is a self-explanatory correspondence with Arno Penzias. I thought this was a fair comment. I also appreciated that he took the time to reply, and even write it in his own hand.