Multitasking OS - run programs in separate tabs
Telnet (wireless remote shell)
VNC (wireless screen sharing)
UI API
Turtle API (includes true pathfinding based on the ASTAR algorithm)
Remote file system access (you can access the file system of any computer in wireless range)
File manager
Lua REPL with GUI
Run scripts on single or groups of computers (GUI)
Turtle follow (with GPS) and turtle come to you (without GPS)

Install (MC 1.8+)

pastebin run uzghlbnc

Select either master-1.8 for stable or develop-1.8 for the upcoming release

Install (MC 1.7)

pastebin run sj4VMVJj
reboot