The new One-Page eBay Checkout is now available for any sellers that would like to use it. You can quickly and easily enable this new checkout in under 2 minutes and can do so by navigating to Sales > Checkout > Checkout Configuration for eBay. Some account restrictions and limitations will apply which are described on the set up page.

For more information regarding this new checkout, please see the following resources:

http://ssc.ChannelAdvisor.com/enabling-new-one-page-ebay-checkout
http://ssc.ChannelAdvisor.com/new-one-page-ebay-checkout