For those who don't know what a HP-41 is, see http://www.hpmuseum.org/hp41.htm.
NutIP is a HP-41 ROM which implements encoding/decoding TCP/IP packets. As a proof of concept, a web server called WWWD is provided.
This provides HPIL emulation, autoloading and a few more enhancements to Nonpareil-0.79 (Microcode simulator by Eric Smith)
A web server running on HP-41. This is the old, slow and buggy version, written in FOCAL language. This project is obseleted by the NutIP project (see above).