Once you have created pop-up windows, you can share and embed your Web map or use the provided templates to quickly create a Web application that displays the map and pop-up window with no programming required. End-users of the application can click on the map to display the information pop-up. View the Building Web applications with the ArcGIS.com templates help topic for information on creating and sharing a Web map.
The Popup class, an implementation of InfoWindow provides the following capabilities:
At version 2.4 the MobilePopup class was added to provide a better user experience when working with small maps such as maps that display on a mobile device. It provides an info window with a small footprint when a feature is initially touched. Once open, the info window has a button to fill the screen with the feature's attributes so all info about a feature can be seen. We use the mobile popup viewer in the ArcGIS.com mobile site. Visit ArcGIS.com from a mobile device or navigate directly to the mobile site m.arcgis.com to try out the mobile popup.