i was looking at the opera install and found this

Add to apps - Creates an icon in the N9's app launcher. The N9 browser doesn't use bookmarks, Add to apps is the only way to save a link to a web page on the device itself. I rather like this because it gives Webapps equal standing with native apps. However, I bookmark a lot of pages and I'm afraid that the single flat (no folders) app laucher page will quickly be overwhelmed by Webapp icons on my N9. The next firmware release for the N9 is supposed to include launcher folders. If the page has an apple-touch-icon the shortcut uses it, otherwise it displays a screenshot of the page. The image below, center shows a number of Webapps shorts. WapReview, Google+ and Identica are the only ones that have apple-touch-icons.

http://wapreview.mobi/15548/?wpmp_switcher=mobile