Front End

There is a new front-end for TigerVNC, available here.
The installer packages and the repository contain TigerVNC.

Ubuntu / Debian

To install TigerVNC only, run the following commands as root:

	wget -O - http://winswitch.org/gpg.asc | apt-key add -
	echo "deb http://winswitch.org/ VERSION main" > /etc/apt/sources.list.d/winswitch.list
	apt-get update
	apt-get install tigervnc-server tigervnc-viewer
	

This will install the packager's public key, add the repository to your list, update the list of packages and finally download and install vnc.
Note: You must replace VERSION with your distribution codename. (here is how to find out what it is)
We have packages for Ubuntu (Lucid, Karmic, Jaunty, Intrepid, Hardy) and Debian (Lenny, Squeeze, Sid).

Source and information about TigerVNC can be found here.

Other systems (MS Windows, RPMs, other architectures..)

Our applet installer contains TigerVNC and many other useful tools.
Otherwise, there are some binary releases on sourceforge