I have the advantage of using Unity 2D. I say advantage because my
Netbook used the Netbook variety of Ubuntu before Unity was introduced
to the rest of the computing world. My computer is slow by design;
battery life was the objective. I installed 11.10 twice. One time to try
it, the next to adopt it. Why did I install it twice? first time was to
check it for speed on my Netbook, the next time to install it with
encrypted home. Encryption slows the computer considerably but I am
portable and use the box to do my banking.

The problem with being the leader is people have to become familiar with
your ideas. This is true in all walks of life. You don't become a leader
because you are different, rather because you are different and have
great ideas. Where you go people must learn to follow or be left behind.
Thank your lucky star that a leader like Shuttleworth embraced Open
Source rather than like some other people that would take credit for
developments like stereo cameras and computer vision, rather than say
they used something that the fine people at Intel open sourced.

Look forward to a day that Open Source is the leading software, and
codecs that rule are open source like the mighty ogg and ogv formats, so
no one can charge licensing fees for those that make a machine running
Android or other OSs play popular formats that are closed.

Learn Unity and help others. Let's help spread this Open Source thing to
the end of the world. We will all be better off in the end.