Ethics Question: Mobile Phone Location

[diebitter]

I just saw in a store you could pay for a service to allow you to request the location of a mobile phone, and get a street map returned via internet or mobile phone showing, within 50 yards, where the phone is.

They sell it as a protection for parents to know where their kids are, but it blew my mind this was even available.


So, ethical question this raised in my head... if you were wondering where your significant other goes to sometimes in the middle of the day or in the evening, would you use such a device if:

a) You were 95% sure they'd never find out?
b) If you did use it, how long would you leave it running once you set it up? Would a week settle your mind say, or would you leave it on longer than that?



Also: Given the easy access to spy/surveillance stuff you have these days and its relatively low cost, do you think jealous/insecure people are the biggest market for these type of devices?