Application icons are more useful on the home screen than generic bookmark icons.
Because these are simply mobile websites, one could keep these links as browser bookmarks and not go to the lengths of installing pseudo-applications. However, Symbian still fails to show favicons when bookmarks are added as shortcuts to the home screen. This leaves the user faced with a confusing row of identical icons (without extreme measures). Therefore, if you live in Google services, these WRT widgets have the benefit of using individual icons.
Google Calendar and Google Reader
Having spoken to Asri about his creations, there is the chance we'll see more of these widgets. He says he can also create launchers for Google Buzz and Google Tasks. However, HTML5 compatibility has been a stumbling block for other services. So we'll have to wait until Symbian gets its new web browser to see launchers for Google Docs, YouTube and PicasaWeb.
You can download the widgets by visiting the appropriate posts on i-symbian.com
David Gilson for All About Symbian, 8th December 2010.