Don't know who are them, but they are speaking Italian ...
At 00:06, the girl on the left says she's Julia. The girl on the right says something like "Cata" (couldn't really understand). After that, they say: "And we are Cata & Julia!" ...
Nice video, I liked it. Julia's really ticklish on her feet. Can someone download it and post here? I still need to try the screen saver, haven't tried it yet. Maybe it's time ...