I made a purchase with
Google Checkout earlier this week and was really impressed with the user experience. While doing some research into using it, I found they are offering
free checkout services until 2008. This seems to be a killer deal for budding businesses; setting up a merchant account and transaction fees are a considerable obstacle for new businesses.
It does however lack
Interchange support. It is possible to use the basic embedded-in-page checkout with Interchange now, but this HTML option doesn't provide as nice of an experience for the user. It also requires more administration work as the retailer has to manually process orders using Google's checkout site. Building and contributing Google Checkout XML interface support for Interchange may be in my future.