Based on the article below - could it be that when Google built this new contraption - is it optimized for the Google search engine?

“Google has launched Google Checkout, a payment system for online retailers that’s tightly integrated with Google AdWords. Checkout isn’t the rumored PayPal killer, but it does offer some compelling features for both merchants and online shoppers alike.” http://searchenginewatch.com/searchday/article.php/3617061

E-commerce shopping carts are quite an animal of its own. I can’t wait to try this one out!