Python XMPP Client
Overview
Objective 1: build a client in python that will read gpsd data and send position updates via XMPP.
Objective 2: build a client in python that receives location messages and dumps them in a console window.
Objective 3: build an APRS <-> XMPP gateway
Ubuntu tools
Looking in Synaptic on Ubuntu I see these interesting things.
Framework for building bots for IRC, XMPP and the Web
JSONBOT is a remote event-driven framework for building bots that talk JSON to each other over XMPP. This distribution provides bots built on the JSONBOT framework for console, IRC, XMPP for the shell and WWW, and XMPP for the Google App Engine. A plugin infrastructure can be used to write your own functionality.
Jabber client using Qt
Psi is a free instant messaging application designed for the Jabber (XMPP) IM network (including Google Talk). It has full Unicode support, and supports most important XMPP features like file transfer, group chat, encryption etc.
Psi relies on the qca2 library for its encryption features. Therefore, it's necessary to install libqca2-plugin-ossl for SSL (client-to-server) encryption and libqca2-plugin-gnupg for PGP (end-to-end) encryption.
Client libraries
Options for client libraries I am considering include PyXMPP, SleekXMPP, and Twisted.
PyXMPP2 website: https://github.com/Jajcus/pyxmpp2#readme Version 2 looks like it might not be ready.
Sleek website: https://github.com/fritzy/SleekXMPP/wiki
Twisted website: http://twistedmatrix.com/
Location sender
Location receiver
APRS XMPP gateway
Only a few people have already done this but none of them was me! :-)
http://www.aprs4r.org/cgi-bin/trac.cgi/wiki/APRSXMPPGateway
An old but interesting blog entry. http://serendipity.ruwenzori.net/index.php/2008/10/23/xmpp-geographic-presence-for-local-social-networks