Opera Widgets can either be a standard solution, offering Web applications directly via various methods of distribution or online repositories or can be an application platform for OEMs and operators to deliver customized and flexible user interfaces via the Web.
One widget - adaptive style with CSS.
Opera Widgets is a mechanism for delivering cross-platform Web services with a locally-installed front end/client developed with Web technology. As widgets can be deployed on mobile devices, they are perfectly suited for Web 2.0-type services with sharing and user-driven content.
Opera Widgets can be deployed on multiple platforms with a single distribution file.
Due to the platform-independent architecture of the Opera Widget implementation, the Web developer can design his widget for different screen sizes and CPU/memory configurations using common Web technologies and design rules.
A single Opera Widget may have three possible UI states for a single device to optimize for different use cases.