Yes, a comparison between goTenna and BearTooth would be good.
Android app is missing some great features like automatic group location updates. Right now you have to get location updates manually broadcast to you by each person in the group. Lots of crashes too.
I applied for an SDK but haven't heard anything back in three months. Feels like the project is dead, as there have been no android app updates in that time either.
Your hardware seems to be top notch!
Ahh, good explanation of the group updates functionality. Is this a problem for a small group of 4, every 15 minutes? Seems like not too much bandwidth if you aren't talking about an update ever minute.
forum about mesh networks, such as those products.