User Story:

* As a web developer I am targeting a specific device like the iPhone 5s and I would like to be able to easily choose that device by name from a list such that I don't have to look up the screen size and enter the information manually.

Acceptance Criteria:

* Common devices available from a regularly maintained list
* Choosing a device change the viewport to match the constraints of the new device
* List of popular devices for initial display to users as target devices
* Way to customize the list of target devices

Notes:

*The entire device does not need to be available all at once, we may want an interface that allows you to choose a set of devices for a set of devices you intend to target.

We have the beginnings of a device database on github which is being used for the WebIDE:  https://github.com/jankeromnes/devices

Competition:

* Chrome offers a limited set of devices they build directly into Chrome releases.  Their device list is more mature than ours and offers slightly more information.  A side goal of ours is to work with Developer Services on a device list service that can crowd-source the information needed.