The news broke last week that Google (GOOG) is working with a number of national retail chains to create a same-day shipping service that will compete with Amazon Prime. It was previously reported that Google would undercut Amazon (AMZN) and offer the service for between $64 and $69 per year compared to $79 for Amazon Prime. Sources speaking to TechCrunch have now explained that pricing hasn’t been finalized, however, and the service is being tested at a price of $4.99 per delivery. The same-day shipping service, which will be known as Google Shopping Express, is reportedly being tested in the San Francisco Bay area with local partners and national retailer Target (TGT). It is still unclear when Google plans to announce the service.