This works on all iOS devices with mobile browsers. If you want to open a link in Mobile Safari without having to leave your current page, you can choose to 'Open in New Page.'
Simply hold your finger on a link until you get the popup message with four options: Open, Open in New Page, Copy and Cancel.
Simply touch the button that reads 'Open in New Page' and the new website will open in a separate page. That way, you won't lose your current place and you can see the information that's linked.