I gave Google Checkout some hassle earlier about promotion they were doing of the service. Earlier this week, I met with them during a visit to Google. The team explained that some of the promotion they’ve been doing is designed to react to consumer demand, to serve Google users that are asking to make it easier to filter shopping results by Google Checkout merchants. Now the Official Google Checkout blog is up with a post discussing this in more detail. The post also talks badges that have been used recently instead of the standard cart icon, as well.