Contributor ay

Suspend and hibernate still seems to be a big issue based on forum posts. Really focus on fixing it, even with proprietary drivers.

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.

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.

The restricted driver manager is a quite good utility, especially for new users. But often the automatic driver installation process gets useless if the used video card is not supported by the old driver in the ubuntu repository. The User has to download the new driver from the vendor's website and install it manually. This causes several problems, most irritating might be the required reinstall on kernel updates, not to speak of the lack of comfort for the average user.
And it's not only the support of new hardware, also new features are introduced with newer driver versions (e.g. AIGLX in the fglrx one).
So I think, these drivers should be updated by the update manager, too.

Additional Drivers (inkcl. propritary) should be downloaded (only) when needed. E.g. I add an camera to my system and the system asks my to download the right driver.

I want to see in the terminal that when you type in anything and then press up or down, that it will go through the history and find the first command that started with the typed out string. This would save me lots of time instead of going through up to 20 commands to try to find the one I want.

Sometimes when you use the console or terminal todo stuff, like for example 'cat' a (binary) file, then the characters in the terminal might get garbled.

Make some thing that prevents it from getting garbled.

DTrace is a comprehensive dynamic tracing framework. It is designed to give operational insights that allow users to tune and troubleshoot applications and the OS itself. Special consideration has been taken to make it safe to use in a production environment. For example, there is minimal probe effect when tracing is underway, and no performance impact associated with any disabled probe; this is important since there are tens of thousands of DTrace probes that can be enabled.