Web 2.0 is coming to mobile phones, according to Nokia, which has launched a service that allows Java-enabled phone users to choose widgets, or small applications, that can be displayed on their phones.
WidSets is a free offering that users can set up on the WidSets Beta site. On the site, customers can choose from many different widgets that will be displayed on their phones.
(https://www.widsets.com/index)
Widgets usually reside on a desktop and receive information, such as data delivered via RSS (Really Simple Syndication). For example, a Google News widget can appear as a small icon, and when users click on the icon, they can see the latest headlines that appear on the Google News Web site. Widgets are considered Web 2.0 applications because they offer an interactive and customizable service different from more static Web sites.