It’s a new gold module of the Wordpress eCommerce plugin, it will produce a fancy look of one category of your product or several recent product the admin just inserted. The admins are able to select the category or latest products to display and how many products are visible in the slider. and customers can click on the little plus image to add the product to the shopping cart.
Here are some screen shots from the plugin:

and admins can insert this into any page or post using TinyMCE buttons.

People using these plugins should have noticed WP shopping cart and Hide page plugins are not compatible with wordpress 2.5
With the latest update of WP shopping cart and(release tomorrow) and Hide page plugin are compatible.
Here goes the screen shot of the working plugins:
TinyMCE3 first:

and Hide pages plugin:

The TinyMCE button is working now with e-Commerce Plugin activated, now people using e-Commerce plugin can insert wpsc_category tag by clicking on the “cart” TinyMCE button. Here is a picture of how the button works. 