I just got another sale through GoogleCheckOut. That's 2 in the 3 days that I've had it installed.

The significance of this is that I have not been getting sales that frequently even though I offer merchant card payments and PayPal.

I think that means that GCO is stepping in where the planned-but not-yet-built ability for customers to buy without creating accounts directly in our zen carts would have been. These customers are going directly to GCO from their shopping carts, while they are still in Guest mode. The fact that they can (and do) complete their transactions while a Guest is a great boon to us.