Let the hive mind of Engadget get that for you.
"I commonly need to boot a system from an external disc and take a snapshot of the host system. I also then need to burn a copy of the image to a DVD. While I can do it with two separate external devices, and two power supplies, and two I/O cables, it'd be nice to find a small dual-drive enclosure. It would need to have USB, eSATA, and FireWire. Either slim-line or half-height bay for the optical burner would be fine, and space for either a 2.5- or 3.5-inch hard disc. Any ideas?"
The user interface is like no other phone. Give your grandparents an iPhone and they can figure it out straight away. I suspect giving them an Instinct will not have the same effects. The user interface on the iPhone is actually fun to use - there are no other phones which offer anything similar at the moment.
Although Samsung has an excellent reputation and brand image, the reputation of Apple is leagues ahead. They have a huge following - one which many companies would love to have. Just look at the media attention they have drawn up from the launch of a 3G phone. Could any other company do this?
Apple is one of the first companies in the mobile phone market to realize that features aren't everything. Give consumers what they need, then make it fun to use the features.
That's what sells iPhones.