Google Checkout's Effect on Hits and Sales Part II

In April, I wrote an article on Google's push for Checkout adoption and it's impending effects on business. While we have noticed some increases in paid search hits on our campaigns with google checkout enable vs campaigns without, it was very difficult to measure any real results.

It seems that Google has done some of that work for me, as reported by Ina Steiner from Auctionbytes:

"Google's SVP of Product Management Jonathan Rosenberg said many advertisers are reporting much higher click-through rates when using Google AdWords with Google Checkout, as much as 60% higher than without Checkout."

While "as much as 60%" doesn't really tell us anything useful, at least they are recording measured increases.

Also interesting was this statement, "Rosenberg said advertisers have decreased the cost-per-click by over 31% with Google AdWords and Google Checkout." It seems that you can be lower in the rankings for paid search, but still get the click since you have a huge 3d GC button under your ad.

Any sellers out there have any 1st hand counts of implementing google checkout?