The Easy Niche Store Script is a PHP script that PLUGS IN to your existing (PHP based) website or existing Ecommerce site to allow you to display Ebay products via RSS.
The advantages of being able to do this are:
You can add an instant Niche store to your website or existing ecommerce site to 'boost' your product offerings
You can make money through ebay through referrals. The Ebay affiliate code (from Commission Junction) is embedded in all the links
You can build an entire Niche shop site with dynamic links through to ebay products