Reuters:

Apple Inc and Alphabet Inc’s Google on Monday said they would ban the use of location tracking in apps that use a new contact tracing system the two are building to help slow the spread of the novel coronavirus.

And:

The Apple-Google decision to not allow GPS data collection with their contact tracing system will require public health authorities that want to access GPS location to rely on what Apple and Google have described as unstable, battery-draining workarounds.

And:

Software company Twenty, which developed the state of Utah’s Healthy Together contact tracing app with both GPS and Bluetooth, said on Monday the app “operates effectively” without the new Apple-Google tool.

“If their approach can be more effective than our current solution, we’ll eagerly incorporate their features into our existing application, provided it meets the specifications of current and prospective public health partners,” Twenty said.

At some point in time, I’d expect Apple and Google to build their contact tracing exposure notification solution into the OS, in addition to providing access to third party apps via an API.

I’d expect that the concerns of adoption (getting the system to be actually used by the public) and battery drain are cornerstones of the teams doing the testing of the system.

And not sharing location tracking data? Seems a logical, and necessary, restriction.