Flippant remarks aside, I genuinely see absolutely no purpose for the idiotPad whatsoever (much like the idiotPhone, which is merely a smaller version of the same device), in aviation or otherwise.
Okay, so an idiotPad will have several "apps". You'll be able to calculate all those V-Speeds and fuel burn on it, display a plog, view the VFR Scottish half-mil, look up the AIP entry for EGPH and the associated Aerad charts, and it'll have GPS.
The fact is we all get along fine as it is just now, without the idiotPad; all it is is a gadget.
GPS aside, my £15 kneeboard, a pencil and Smithy's grey matter seem to do all of the above listed anyway. Simple, effective enough and much cheaper than an idiotPad.
Smithy