It appears that Apple may be working on adding service workers support to WebKit. The WebKit Feature Status webpage has recently been changed from "Under Consideration" to "In Development." This change may be an indication that Apple will eventually support Progressive web apps (PWAs).
Google has now made its closely-guarded Google Places API available to all developers, after nearly a year in closed beta. The API, first announced a year ago, returns business listings based on location. The search giant also added features that make the service useful for many types of local applications, in addition to simplifying the authentication process. With additional agreements, Google also allows for a healthy 100,000 queries, versus only 1,000 standard calls.