Just a heads-up, I installed it and signed in with one of my two accounts, but then decided to switch the one free account to my other account. After removing the original account, I wasn't given the option to add in the single free account, only upgrade (I'm guessing there was an assumption in the code that the user would always have one account, and never remove it?). Uninstalling/reinstalling didn't give me the option to re-register, either.