An ipad is a million percent better than the hideous OIT display of charts in the A380. Hard to work out who certified that, but it's unreadable, very slow, and ****s itself at the most inconvenient times.
For an example of what it's like to use...take all of your charts, cut them into thirds (because you can't show a complete chart and actually read it), and then take up to 8 seconds to change 'pages'.