MeeGo 1.2 Harmattan doesn't yet have a VNC client. But Easy Debian has a dozen to choose. "ssvncviewer" is my choice over the vnc viewers that I tested because it allows typing the password using MeeGo Terminal, has many options including full-screen, etc. As root in debian, install :
[root@chroot: /]apt-get install ssvncviewer

To use without a real keyboard (on N950 or external Bluetooth on N9), fitting the remote screen to N9 screen :
[root@chroot: /] ssvncviewer -fullscreen -scale "854x480" <ip>

With a real keyboard (on N950 or external Bluetooth on N9), there are many keyboard shortcuts : arrows, home/end, page up/down to move, etc (see "ssvncviewer --help" for more information). Here in view only mode :
[root@chroot: /] ssvncviewer -fullscreen -viewonly <ip>