I've been "helping out" testing all beta versions of Opera v7.20 of which there actually where 13 released...
And now when this lucky-number got reached Opera decided to call it a Final release...
I highly recommend the Opera browser just because I've seen it improve so much during this short time and it is without doubt the best browser I have ever tried...
To download see their homepage.
The Swedish translation is also done, see this site. I did not see (nor look) for other languages but they will sooner or later pop-up on this page at Opera...