I think it would be pretty easy actually, to keep up with the data - you could just get a Bluetooth headset and set your phone to automatically accept calls from your spying device, then listen in while you go about your day.
But at the end of the day, we dont want to encourage the deep surveillance state... but we techie always look at this sort of thing and then say "hmmm... wouldnt it be interesting if..."
The majority of these techniques are allowed in the US because Congress doesn't know / care.
The more popular exploits of insecure technologies we get, the more security becomes an economically beneficial differentiator. And the more concerned calls your local Congressperson receives.
This is for jealous spouses.
Nope. But if somebody replaced the cable while you weren't looking ...
OK, I will bite. I would not call any company doing what is already possible more convenient for users a company with questionable ethics. That, to me, is perfectly OK.
In my book what is questionable (despicable, actually) is making a product that, as a byproduct, generates side-effects undesired by users (such as easy tracking) and does not try to allow the user who cares to turn such features off.