Taking ideas for a "safety tether" at all?
Like a wrist strap safety tether for your hand? We have one in the works.
Honestly, Luma has a LOT of stuff in the works, but we feel the need to develop a truly effective bracket quick release concept. This is the primary driver for Cinch 3, a hand strap, a small camera strap and a few other gizmos.
I don't think anyone has really solved the quick release solution (aside from tripod mounted stuff). Everything out there either leaves a giant thing dangling from your camera, or it's difficult to remove (i.e. not "quick"). It's a challenge because we don't want to make something that costs an arm and a leg like the Swiss Le Hooks (which we love!), but it needs to be strong... Ohh, and it also can't scratch your camera!
It's a challenge to really solve this problem right, but we're working on it.
And if you mean tether for the Cinch....
I'll paraphrase Steve Jobs (re: touch screens "If you see a stylus, they are doing it wrong"). If a camera strap company festoons their strap with safety tethers, they aren't doing their job correctly.