DoudouLinux : Linux for kids.

DoudouLinux is a Linux distro meant for kids . It provides tons of applications that suit children from 2 to 12 years old with an environment as easy to use as a gaming console.  The project's version 1.0, code name "Gondwana", is now released.
Standard DoudouLinux is delivered with about fifty applications that have been specially chosen to be accessible for children from 2 years old. These applications cover the following topics:
Education - teach children while having fun.
Fun - have fun with games, easy to access but not necessarily simplistic
Work - write texts, calculate, communicate, etc.
Multimedia - listen to music, watch videos, play or create music, or create animation movies

Run vlc media player as root.

There's an issue in vlc player that it won't run when you are logged in as root. I don't know the reasons, may be its developers have some security concerns.
Anyways, you can make it run as root by following a simple series of steps, assuming that you have already installed it & it's running in case of other users.
Follow these steps:

• Login as root.
• Install ghex/khex (Hex editor for Gnome/KDE environment). 

Understanding VIM : [Tabs] Tutorial-5

It's quite possible that you may be working on several projects at once, having tabs set up can be a cool way to multi-task without having to see all of your files at once.
If you want to start Vim with more than one file, run vim -p filename1 filename2. This will open each file in its own tab.
Already in a Vim session? You can open a new tab with :tabnew filename to open (or create) a file.
To switch to the next (right) tab use gt in command mode. To switch to the previous (left) tab, use gT.
To close a tab you can use :q. If you're editing one file in a tab and use :wq Or you can use :tabc to save & close it.

blueproximity : Lock/unlock Desktop using Bluetooth.

This software helps you add a little more security to your desktop by detecting one of your bluetooth devices, most likely your mobile phone and locks the desktop if the mobile is not in the vicinity. If you move away from your computer and the distance is above a certain level for a given time, it automatically locks your desktop or starts any other shell command that you want.
Once away your computer awaits till you are back with your mobile. If you are nearer than a given level for a set time your computer unlocks magically without any interaction (or starts any other shell command you want).

Understanding VIM : [Viewpoints] Tutorial-4

Using viewpoints & tabs (introduced in vim 7), we can edit more than one file at a time. This is useful when you are connected with a remote machine & you prefer to open only one session. It's also useful when we want to edit a long file at different lines.
Viewpoints breaks the vim editor into two or more segments, either vertically or horizontally. Open a vi editor & then go to last line command, enter :split. You can now see two views of the same file.