2. Apple iPhone 4

The iPhone 4 is certainly the most impressive iPhone ever, and a big step up from the iPhone 3GS. The flat body is only 9.3 millimetres thick, 24 per cent thinner than the iPhone 3GS at its thickest. It feels great in the hand, and at the keynote Steve Jobs remarked, "Its closest kin is a beautiful old Leica camera."
By far the most in-your-face improvement is iPhone 4's 960x640 screen. It's got 326 pixels per inch, and we're talking tiny pixels, only 78 micrometers wide.
The Retina display, especially, is hands-down the clearest, most enjoyable screen we've seen on a handheld, and the sheer amount of technology packed into the device is surprising.
The iPhone 4 would definitely top our list, were it not for the fairly major flaw which sees 3G reception disappear when you hold the phone with your left hand. It's an embarrassing problem which mars an otherwise brilliant handset.
We think people are making a little bit too much of a fuss about the reception issue – a little shift of the hand sorts things out – but on a premium phone it shouldn't be there at all. It's still a great phone, but we're disappointed as this could have been an all time classic without it.
It's also a little expensive, and while the reception problem has been minimised by free bumpers, for the price this phone should be absolutely flawless and sadly isn't.