I just saw the CWNP WLAN News Desk for the day.
One of the topics Tom talked about is Ethertronics, and their antennas. I have used their antennas on one of our products and am very happy with it.
I had seen an announcement like this one the other day, but didn't have the time to post it. So belatedly, I will post it now:
We used two of their Prestta series Isolated Magnetic Dipole (IMD) stamped metal antennas in one of our products (in parallel. about four inches apart) and got great diversity performance. With all of the metal and electronics we had in place, we had no de-tuning or interference problems.
This was our first use of a magnetic dipole antenna, and we were very happy with it.