WARNING, CoPilot has an ACTIVATION LIMIT. If you hard reset or ROM flash often and have to reinstall/reactivate over a set number of times the product will stop working. Some of us are running into this issue now and can no longer use CoPilot, because we're not paying again for something we already purchased and only reinstalled to the same device.
Read details here:
[Q] Clarification of Co pilot activation - xda-developers