SSHVnc is a VNC viewer, written in Java, that combines the TightVNC
Viewer with an SSH client. With this app, you can login to your
target PC's SSH server and VNC Server at the same time, thereby
saving yourself one step in securing the VNC connection.

More info available here: http://3sp.com/products/sshtools/sshvnc/sshvnc-features.php