Anthony Cole

By default, the widget generates an unordered list of permanent links to blog posts with the post title. The product listing ul has a class of <code>wpec-history</code>.
Coming in future versions is the following…
<ul>
<li>Support for post thumbnails</li>
<li>Support for logged out users</li>
<li>Dashboard for tracking what products your users have looked at.</li>
<li>Hooks and Filters (dependent on user feedback. I can’t really see a need for them right now as the plugin is quite simplistic).</li>
<li>Default styling.</li>
</ul>

WP-Ecommerce History

WP-Ecommerce History is a plugin for the popular WP-Ecommerce plugin that allows users to view the products they have looked at in a sidebar widget.

analogrithems

This is a plugin for WordPress e-Commerce <a href="http://getshopped.org/" rel="nofollow ugc">http://getshopped.org/</a>
It provides some advanced functionality to really help people get up and going quickly with WordPress eCommerce. It allows you to do mass imports of products, users and orders. Or perhaps you want to pull the data back out. Well the export can do that for you. You have the choice of working with any of the following formats 
 * CSV 
 * XML 
 * SQL
This plugin has many uses such as migrating from an old outdated ecommerce cart like oscommerce or zencart over to WordPress ecommerce. 
This plugin even implements RPC XML so you can access your orders, products and user information via a nice easy to use XML api. 
New API’s are being added to support common Order Management Solutions. If you have an order management system you would like integrated with WordPress ecommerce be sure to contact be at the site below. 
See the full documentation at http://www.analogrithems.com/rant/portfolio/wordpress-ecommerce-data-feeder/

eCommerce Feeder

WP eCommerce Feeder plugin used to import and export data for products, customers and order history.

WP-Ecommerce History vs eCommerce Feeder