Is his the official Skype client, or a 3rd-party one?
What's so much better about his, are you mainly referring to it's vid-chat abilities?
I doubt there'll be a much more sophisticated official Skype client for the N9.
Skype's now owned by MS, I doubt they'll allow what's coming to WP, into Maemo6x.

The only 3rd-party Skype client I know of, is Peregrine Communicator.
Google it, they want beta testers very soon....
They originally planned to do Skype "&" XMMP/Jingle (GTalk) vid-chat.
That's very ambitious, not sure if they're still going to do that though.

There's a thread dedicated to the status of video-chat here
http://talk.maemo.org/showthread.php?t=81043