Netvibes Universal Widget API (UWA) is a free and elegant widget framework that uses XHTML for structure, CSS for styling and JavaScript/Ajax for behavioral/DOM control ; it can also use iframes and plugins such as Flash. UWA supports all major widget platforms, including Netvibes, iGoogle, Windows Vista, Mac OS X, iPhone and more.
Credit to Rik` in irc://irc.freenode.net/#webkit for the referral/suggestion.
Rich internet applications or RIA are becoming more and more popular these days with improving internet technologies. One such technology which creates these fancy application is Adobe flash. RIA development with Adobe Flex provides the ease of Flash in web application and reduces the work of the programmer in order to provide high quality apps with reduced efforts and eventually cost.