I think a 5 year old with no preconceived notions of a user interface is probably the best validation of whether a device is &quot;usable.&quot;  Also my 93 year old grandmother took to her iPhone almost instantaneously. As did my technically challenged parents, all of their friends and pretty much any of the hundreds of people who I have ever seen pick up an iPhone. I have actually never even heard of a single person picking up and iPhone and saying &quot;I can&#x27;t figure this out - it&#x27;s unusable!&quot; until your post. And on a tech forum no less - what are you even doing here?<p>Perhaps you feel Apple should have designed a beautiful rotary phone?