I have a couple of N9's with the same twitter account and Rocket can't authorize on one of them. If I only knew where to look, I could try to overwrite the necessary config file(s) by just dragging them from one device to another. I skimmed through the system for Rocket related files using WinSCP, but couldn't find anything that holds the authorization/token information. Either it is well hidden, or it is embedded in the accounts database.