iPads for flying
Sportys do a great 'iPad Pilot' website.
However I think there are iPad kneeboards for iPad 1 and 2 jointly. They're AvPad, iPro Aviator, etc.
There are only a couple of iPad kneeboards for the iPad mini which I assume you are talking about. Look at Design 4 Pilots iPad Mini and also iPro Aviator (Mini). Finally there is a Flightgear one by Sportys which is also available in the UK if you prefer a 'material'-cast kneeboard rather than metal.