About the adapter, this seems to be an useful project for people outside US/UK/Europe, where everything computer is easy to buy. I hope to expand it someday for USB input. At least optical mice are still easy to be found in the USB version.
Nice to know someone else speaks portuguese here. BTW it would be nice to know who are in Brazil, and maybe set a meeting somewhere.
Voce morou em um dos melhores lugares do Brasil, la as mulheres sao lindas

(you lived in one of the best places in Brazil, there the woman are beautiful)