Virtuoza was the publisher who published Smart To-Do, which was on GAOTD. Just today I received a scam email (one of the "you've won the lottery, contact us" scam emails) from the email I used to register with them. I know the scam email came from their actions because I only used that email with Virtuoza and it's a very arcane email address (not guessable). The email address is also relatively new.
Virtuoza is the same publisher people were worried about with a key-logger. Given that they sell your emails to places that send scam emails (not just spam, but a lottery scam!), this is not a company you want to share your information with.
I suggest everyone avoid any Virtuoza software in the future.