Despite the slightly higher resolution (800 vs 768) vertical space is always a bit constrained on widescreens. This is even more noticeable with Gnome which has two panels, at the top and at the bottom, that use at minimum size 50 pixels both. Some other 20 px get wasted in the application titlebar, around 15 px in its statusbar, countless in horizonal scrollbars, menu bars, toolbars and whatsoever.
Ubuntu founder Mark Shuttleworth spent about $20 million to go into space, and he never got farther away from Earth than a few hundred miles. Using three free software programs, you can look at and virtually travel to places millions of miles away without leaving your GNU/Linux desktop or paying a dime.
While it may not let you go where no man has gone before, Celestia is an amazing desktop application that lets you go anywhere in the known Universe.You can view any object in the Solar System, travel to distant stars, and even leave the Galaxy, traveling faster than the speed of light, viewing high-res images of objects millions of miles away.
I have just discovered that ext3 defaults to reserving 5% of its partition exclusively for root, as a precaution measure that your system does not get FUBAR when you use it for your root partition. I have a 230GB external USB disk that I use for all my big storage requirements, downloaded stuff, backups etc. Due to this reservation I had 11.5GB of unusable disk space, thankfully this is easy to fix: