An open source RDP server
LibVNCServer/LibVNCClient are cross-platform C libraries
High-speed, 3D-friendly, TightVNC-compatible remote desktop software
3D Without Boundaries
UltraVNC: Remote Access Tools VNC/RFB Remote Desktop Support Software
This application will allow you to install and run Linux on Android !
HTML5 Clientless Remote Desktop
Linux Server and Data-Center WAN Optimization
Qt based VNC viewer with MAME/MESS specific extensions
The GTK Remote Desktop Client
GTK+ XCP/Citrix Xen VNC console for Linux
Twin is a "retro" program for embedded or remote systems