Contributor ay

This is what's being used in the OLPC's, which allow small villages to essentially build their own wireless mesh networking infrastructure that works and shares traffic overhead (IEEE 802.11s). You could imagine having a little utility on your Ubuntu PC that would scan for such wireless mesh networks, allow you to connect, act as a server/client node, share files, chat, and the sky is pretty much the limit from there. People could begin hosting their own webpages from their PC for free, using nothing but radio waves.

If you utilize the bandwidth and full-duplex potential of 802.11n wireless networking, you could create large decentralized mesh networks that could be very fast, much faster than cable Internet access.

Most business laptops and some of the end user ones too now include a fingerprint reader.
Those are perfectly possible to use on Linux either by using thinkfinger (IBM/Lenovo) or fprint (HP).

The various PAM modules for those should be installed by default or at least be easily installable and integrate correctly in the default desktop.
GDM, gksudo and the gnome screensaver would have to be modified in order to correctly support fingerprint readers.

That way the user would be able to login either by entering is password as usual or using his fingerprint.

So I right-clicked on a file and selected "Cut" in the context menu.
So that I later could "Paste" the file into another directory.

Make so that when you select "Cut" on a file, the icon becomes dimmed.
Because right now, there are no visual indication, so you don't know it worked.
In Windows there is a visual notification by the icon becoming dimmed.
In Ubuntu there is no visual notification, the icon does not become dimmed. This is confusing.