It doesn't matter if it is 'layers' or 'apps' basically
the problem begins when you have more than one layer/app at a time.
So I guess for a long time we will stuck with one app a time, and some kind of manual switching.
Also there is privacy angle, I don't think nobody wants pinging their location all the time, maybe some QR code/ beacon solutions can help, but I am not much optimistic there too.
> Also there is privacy angle, I don't think nobody wants pinging their location all the time, maybe some QR code/ beacon solutions can help, but I am not much optimistic there too.
Maybe you could have something like K-anonymity? You discretize your location into chunks of maybe 100x100 m, take the hash of the chunk ID, and request results for all chunks whose hash starts with the same 4 or 5 digits as your chunk's hash.
Would probably require some more thinking since a consecutive series of requests for adjacent chunks could be used to uncover which particular chunks you were interested in.
If you own a cellphone you’re already carrying a device that pings your location all the time. I don’t think anybody actually cares enough to change what they’re familiar with, let alone some future potentially amazing technology.
So I guess for a long time we will stuck with one app a time, and some kind of manual switching.
Also there is privacy angle, I don't think nobody wants pinging their location all the time, maybe some QR code/ beacon solutions can help, but I am not much optimistic there too.