Ben worked real hard to get Gizmo in its new version, and it's great that it's working on ARM. That said, we are not suggesting people switch to it yet because it is still a beta and does have some bugs that still need to be worked through. One of those is random activation disconnects, which will disrupt your flight when it happens. Ben is aware of this stuff, but if you happen to ever experience it, you can at least know about it now and not come asking for support. The old version of Gizmo (current retail) will still be available to you in the meantime should that issue arise on your flights.