Will Google's settlement system start soon?

Google Base is a service for sharing things and information that are not publicly available on the Internet and can not be found in search engines, but Google will enlarge this service and make it possible to trade products with Google account It is planning that.

Details are as below.TechCrunch: Exclusive Look At Google Payments

Even now, you can use Google Account to purchase content such as Google Video, but we provide equivalent functionality on Google Base. This will allow users to purchase items on Google Base that other users are offering, using Google Accounts.

Although it is said that search accuracy and payment page will be lightened compared with PayPal and eBay, it is said that the reputation system like that on eBay, that is, the function indicating whether the shop side can be trusted or not, is currently not included about.

Will it be possible to use in Japan as well?