*bump* From the relevant Cemetech news article:

This evening, two days of Python coding paid off, as a CALCnet-enabled TI-83+ connected to a globalCALCnet (gCn) bridge successfully joined and conversed on the EfNet IRC channel #cemetech.  As mentioned previously, the gCn project allows CALCnet 2.2 networks to be joined across the internet; by pretending to be another CALCnet 2.2 network, the gCn bridge enables IRC users to chat with real calculators and vice versa.  The calculator side is handled by the CALCnet Chat client written by Merthsoft and with CALCnet networki ng routines written by yours truly; the Python 'gcnirc' program connects to the gCn metahub and pretends to be another calculator running Chat.  However, it also connects to IRC, and formats messages from each medium to be passed to the other.  In the coming days and weeks, this bridge will be fine-tuned, additional progress and debugging of Chat will occur, and arguably most importantly, the Arduino drivers for CALCnet communication will be fine-tuned to massage out some occasional bottlenecks that keep frames (packets) jammed at the device.  Please feel free to post with thoughts, suggestions, and discussions of your projects that you think should run over gCn!

VT100 Terminal program. Use with an external modem to get Internet access from your TI 83+ by dialing into a Unix shell. Requires an Official TI Graphlink cable. Not all external modems are compatible with the Graphlink.