Right up my alley. Thanks for using Amazon/Paypal/Google checkout integration properly, and not just to pre-fill some info while making me create Yet Another Shopping Account.

One bug: the Amazon cart discarded my old items after I added new ones.

Steps to reproduce: 1. Add a sampler to the cart 2. Try to check out using Amazon 3. Discover that shipping is $6, or free shipping at $35+ 4. Go back and add a few more items 5. Try to check out with Amazon again

Expected result: The items all show up, now at the $35 level

Actual result: Only the newly added items were show