Apple is amazing when it puts its mind to hardware for which there is an &quot;ideal&quot; Form; the macbook is the &quot;perfect&quot; form for a laptop, the iPhone is the &quot;perfect&quot; form for a smartphone.<p>Take watches however, there is no one perfect form - different needs demand different forms. Or cars, or fridges or planes.<p>So yes it may not be computers, phones or tablets, but the number of multi-billion dollar aspirational hardware products that Apple will be good at is not by any means a large number.