Changes

Ship MVP of at least one serious offline [not /progressive?] web app. We need to explore the space of possible use cases – to find bugs in the implementation, to expand our own understanding, to help developers [I would reverse the order of these reasons]. Much of the work of building even simple demo apps is app-related and not related to the underlying technologies. The leading candidate is Platatus, an app that offers a detailed, data-driven view of Mozilla's progress on delivering the technologies behind Progressive Web apps.