I gave my presentation about talking to eBay with Python last night at Clepy and I think it went pretty well, with positive feedback. You can view the slides from the presentation online. Clink clink:

You can now check out my Python eBay library from my Subversion repository:

svn co svn://exogen.case.edu/easyBay

Some documentation can be found at exogen.case.edu/easyBay. No point release or Python egg yet, everything is still in the trunk. You can sign up for (free) Developer Keys at developer.ebay.com in order to use the library.