PicoGUI aims to be a complete GUI environment for handheld computers and other embedded systems. It uses a client/server model, like the X window system, but while an X server is given raw drawing commands, the PicoGUI server integrates a widget set, making PicoGUI clients small and efficient. PicoGUI also has the goal of allowing client/server connections over a variety of mechanisms. It is most commonly used with Linux, but is designed to be portable to any OS. PicoGUI has a variety of video and input drivers which allow it to interface with the Linux framebuffer device, SDL, the X window system, and several other devices.
ggiterm is a software terminal emulator like xterm. However instead of X, it uses the GGI system for its rendering, which allows it to be displayed on anything from a framebuffer to multi-screens across networked hosts (including ordinary X sessions). It features multiple font formats, anti-aliasing, vt100 compatibility, and full internationalization.