We are working on translating it into Brazilian Portuguese as part of a bigger localization project. The project is in a pretty advanced state at this point.
However, until we get full approval from WordPress, Squirly SEO (the plugin itself) is not translated to other languages.
That said, translating Squirrly to other languages is definitely something that is on our radar now.
We are currently gathering interest from those who contact us at [email protected] – we have a Regional Partners program and if we will find partners to help us translate, we will get something ready for more languages.