VNCServer 2x is a simple VNC server for the GP2x made by Lithosphere. Make sure you have network working. Then telnet and launch it in background (“./vncserver2x &”). You can also put this in a script and return to the menu.
Then start a VNC Viewer to the GP2x IP address. You should see your screen on your PC. This will work on most programs (that use /dev/fb0), some programs won’t work (eg mplayer, …).