I think I'd hold off until they're released, then you can determine which is superior, beartooth or GoTenna (which seems to be available now) based on user review.

If you're urgently in need of such a device, I guess you're stuck with GoTenna. I think I prefer the gotenna because it seems (not 100% sure here) to operate around 150Mhz as opposed to beartooth operating around 900Mhz.

That said, I'm pretty happy with the performance of my small handheld radios, so I'll stick with those for now.