A new project_project entry has been added:

[drupal=86]Add Multiple Products to Cart in columns for SPPC[/drupal]

We took this contribution originally by Janz and fixed it to work with osCMax rc2
http://www.oscommerce.com/community/contributions,3606

You can now have attributes and quantity boxes on your product listing page as well as be able to set up the page to have one add to cart button for all products and attributes selected or a buy me now button under each product.