By developing an application using the new Ebay unified web service schema you can win $5000 – still running for 2 weeks :) – now that's a nice one.

If you are looking for an idea to build, then consider a tool for eBay buyers and affiliates. Applications submitted may, but don't have to, fall under one of these three main areas:

1. Category/vertical search (re-mix eBay to help people find things more efficiently)
2. Web mash-up (re-mix eBay with another Web service)
3. Multi-platform (integrate eBay with Skype, PayPal, Outlook, GNOME, TiVo, etc.) applications

eBay Developer Challenge 2006

If you're a Grand Prize winner, your application will ALSO be featured at the O'Reilly Emerging Technology Conference in San Diego, California, March 6-9, 2006.