The new support, expected in the stable version of Chrome in around six weeks, allows Packaged Apps to use a new set of APIs (application programming interfaces). Packaged Apps are a variant of Web sites, like Gmail, that are designed to load flawlessly even when not connected to the Internet.
These include the In App Payments API that's built on Google Wallet; the Identity API for authentication; the Native Messaging API so that Chrome apps can communicate with native apps; a Media Gallery API for accessing locally stored music, image, and video files, including from iTunes; a Bluetooth 4.0-based API that Google says will let the Web apps connect to Low Energy health-tracking devices; and an Analytics API for monitoring app user data.
Some of the additional features will provide developers with more feature-rich options that native apps have been able to lord over the Web. In the In App Payments API, for example, Google notes that developers will be able to build simple one-time and subscription-based billing into their Web apps. The Identity API will let developers provide more granular control over how much information about user behavior in an app becomes available to the public.
It's small improvements like these that Google and other browser developers hope will continue to keep developers interested in coding for the Web, as well as making Chrome a bit more like Android. But keep those dreams of Chrome and Android merging in check -- that's still years away.