The best possible score is 10.
No specific info about version 10.0. Please visit the main page of Gadu-Gadu on Software Informer.
It's not only for Windows. Few years ago, it was on Linux "Kadu". On Android, it made the client,
too. GG is better then MSN and Skype.
Very useful program ;]
closed-source ad-full, crashing soft
Kadu is a free Gadu-Gadu and Jabber/XMPP protocol Instant Messenger client.