I want say thanks to the author for this plugin, because is really useful and it works very well.
There are only 2 problems that I want to report:
1) The widget doesn't show all languages, but just the language of the main site.
For example: If I have the website in 3 languages: italian, english and polish, when I'm on the main site it shows the polish and english flags (and that works fine), but when is on one of the other languages, it shows onli the italian flag (the main site).
2) It's a problem that someone has already reported, and it's about the flag when you're on the home page, that bring on the first post of the other languages.
Hope you can solve this problem as soon as possible.