When creating Coast, the Opera's designers chose to put content, not the browser, front and center on the whole screen. Coast displays webpages the way they deserve to be shown.
The iPad is nearly buttonless, so lements such as back and forward buttons are gone from Coast. All navigation is done by swiping the way you naturally would on an iPad - just like in an iPad app. A single button takes you to the home screen, and another shows the sites you have recently visited.
Essentials such as website security are handled in the background, with warnings when a suspicious site is accessed and extensive info on site reputation.
Coast by Opera is available in the Apple App Store today, as a free download.