Dive summary: 

• Google has announced that Google Checkout, an alternative payment service to PayPal, will be going out of business for good on Nov. 20, 2013. 
• Google Checkout has been the default payment service for Google Play, but after Nov., all Checkout players will be transitioned to Google Wallet. 
• Google has partnered with Braintree, Shopify and Freshbooks to offer "discounted migration offers" as none of the other services are free. 

From the article: 

"Google is also offering a 'Google Wallet Instant Buy' solution as a 'fast buying experience' for shoppers who use Google Wallet. An Instant Buy API is provided for merchants to start developing against for websites or Android apps.

Merchants will now also be able to take advantage of the Wallet Objects API to better engage with customers by offering loyalty programs, special coupon offers and more."