Nettle is the terminal emulator and telnet client for the RISC OS operating system. It utilises the ZapRedraw module for speedy display and is a fast, clean native implementation. Nettle supports most common terminal types, including vt100, vt102, vt220 and xterm terminal emulation in full colour, along with some more exotic features which you might not expect from a terminal emulation program, such as URL launching just double click on any URL that is displayed in a Nettle window and it will launch in to your browser. Nettle also has an ANSI Task task window feature, which allows unix programs such as ssh, lynx, BitchX, ncftp2 and nano with ANSI terminal interfaces to be run natively on RISC OS for the first time.

Website: http://nettle.sourceforge.net/