VNC clients are quite abundant for the Linux operating systems and many have been ported to the Meego that is a Linux based OS. While some are already available in the app store, most of them are not touchscreen friendly. This one, Presence VNC is very capable and touchscreen friendly.
This touchscreen friendly VNC client is for Nokia N9 and N950 with working VKB support. However, keep in mind that this application does not supports encryption and you will have to turn it off on the server side in case encryption is enabled there.