I don’t know. One of the significant perks of meshtastic is the pseudo anonymity. Having a device locator function would break that. It wouldn’t be long after the network broke more widely than it has that a state level actor would abuse the location service.

To some extent this exists. You can attach a Meshtastic radio with GPS (Seeed T-1000E, for intance) to anything you want. Then you can request the location of that radio. If it is accessible through the mesh, you can find out where it is. The problems are going to be coverage and battery life, but it is possible.

Yes please

Meshcore so you can actually find it when it leaves your line of sight