With exception to cut and paste, there was not much that I though was really useful in 3.0, but there are a few.. here is #16

Open Link In New Tab In Safari

Safari now uses tabbed browsing, like big boys do on the desktops, and this new hidden feature is great. If you tap and hold on a hyperlink (hyperlinked text) on a Web site within Safari, a dialog will prompt you to open this link, copy it (link locations) or open it in a new page (which opens a new tab in Safari).