So far, this is what is working:

* Get location of device
* Get device hardware information (CPU/memory)
* Get network information (IP, neighbour wlans)
* logged in user (usually nemo or root)

Features missing:
* Screenshot
* Camera
* Sound alerts on device
* Message alerts on device
* Lock device
* Erase device

Allthough the missing features are nice to have (especially the lock device) I believe it is at this point usefull that we can get location reports for a stolen device.

Prey have added the distro 'mer' to the recognized distributions, so, any updates that will be done to enable the missing features should be pushable to them, and as such that will make it much more easy to install, as everything will be part of Prey's 'native' eco system.

A certain well-known developer may look at the Prey sources and hopefully, in a near future we can have a more SailfiishOS-native client, and hopefully Jolla can make this a part of 'standard firmware'.

What needs to be considered, is how to protect de-installation of Prey.
Prefferable Prey as service can be protected from de-installation, and any GUI part that would be de-installed would be for status information only.