...If I'm not mistaken, this is only p2p and some basic things to use received files ?
Opera Unite: a Web server on the Web browser
With Opera 10, we are introducing a new technology called Opera Unite, radically extending what you are able to do online. Opera Unite harnesses the power of today's fast connections and hardware, allowing all of us to help define the future landscape of the Web, one computer at a time. Read about how Opera Unite is going to change the way we interact on the Web on labs.opera.com.
File Sharing
A simple and safe way to share files directly from your computer.
Fridge
A fun place for people to leave notes on your computer.
Media Player
Access your complete home music library from wherever you are.
Photo Sharing
Share your personal photos with friends around the world without the need to upload them.
The Lounge
Invite your friends to a chat in The Lounge hosted on your computer.
Web Server
Host your Web sites running from your own computer.
"File Sharing"
This is peer-to-peer.
"Fridge"
You send a txt file, and the application writes it onto a virtual post-it. p2p too.
"Media Player"
This requires uploading music on Opera servers.
"Photo Sharing"
p2p.
"The Lounge"
Like the Fridge, only a different interface.
"Web Server"
Ooookay. For this to work you must spend a lot on electricity....Unless this is hosted by Opera servers.
Nothing in those things are new.
I'm using the latest Opera 10 build, which has this feature, and the Opera default skin is also changed a bit. Now there is some color in the default skin, and I like it a lot! There is also a new Opera Link Synchronization feature (which was there in the previous builds), but now it's in the Tools menu instead and there is also an icon for it in the statusbar of Opera, along with the Turbo and Unite buttons. I like this latest version a lot! Tabs also change color when you hover over them too, and the scrollbars are different color now; a light blue-gray color. The progress bar is also a different color now. There are also some other new things about this latest build.