One of the key things Apple recognises is that, at heart, it's not a hardware manufacturer.
So many manufacturers make the mistake of thinking software is just some annoying but necessary add on, and that it's all about hardware. It's why there are alot of crap phones that 'Beat' the iPhone but in reality are also-rans. In the phone market, RIM are the other player that understood this (and so did Palm, before they inexplicably faltered).
Anyone with manufacturing experience in this kind of tech, and a reasonable sales reach, can churn out me-too products, but it's not innovation, it's assembling off the shelf stuff into an idea that is easily reproduced. Adding something genuinely unique is the key. Few hardware companies get this - or, at least - are willing to take a leap of faith and make the R&D investment to go there. Shame.