just two remarks after using it for a short while:
- system-services 0.3.8-68+0cssu0 also got upgraded after a apt-get update/upgrade afterwards (in my case). Don't know if it is added later, initially not upgraded or something else (edit: maybe not even thumb related)
- busybox-power-thumb is no longer active if you had it installed. A reinstall brought it back for me as default.