Hi John,
I have built similar functionality to Lynq in my App “Mesh Developers Toolkit”
The bearing view is accessed by swiping left on the device name in the list of goTennas on the “Devices” tab.
It has a tab “Devices” which allows you to see other “Mesh Developers Toolkit’s” you have a position for and get a “bearing” to another goTenna, using the device’s GPS, Compass and Camera against a simple “Compass Rose”:
When you rotate your phone around the red dot moves to indicate the compass bearing and when you are pointing at the other GoTenna’s last location, the two dots line up (and the phone vibrates).
You can also quickly pair with another device running “Mesh Developers Toolkit” by using the “Scan QR Code” tab on both devices - on the one device you click on the “I” button which displays a QR Code which can be scanned by the other device.
I have submitted a new build to the iTunes App Store (2.7.1) which includes a new setting “Poll Devices” which will send a position request every few minutes to other “Mesh Developers Toolkit” in the “Devices” tab.
This functionality should be considered Alpha and I would be interested in your feedback.
Hope this makes sense.