Installable Web Apps – Google Code

Solution: Installable web apps
A better approach would be for users to install their favorite web apps. An installed web app could be separated visually from other tabs, could integrate better with the OS, and could be granted increased permissions. This special handling of web apps is exactly what we’re working on in Google Chrome.
Installing a web app in Google Chrome is easy and quick, with no restart required. At its simplest, installing a web app is like creating a super-bookmark to it.
(Link: Installable Web Apps – Google Code)