Brand iPhone.

iPhone's are the most popular phones in the world. You know what it looks, like, you know how simple it is to use!

This is the phone that really started the touch revolution. If it hadn't been for it, we'd still be using non touch phones. Try now to count how many of your friend/colleagues/family have touch phones. It's a growing number!

For maybe 1/4th of them the number has become 1/2 and its growing at and astounding rate!

The iPhone introduced us to proper touchscreen. I don't mean that it was the first touch phone, it introduced us to capacative touch. How else do you think suddenly every phone is accepting proper feather touch input?
The iPhone brought about the app revolution. It introduced to the common man, not only us tech junkies that these applications are easy to install and pretty useful.

The iPhone has always been evolving, little by little its features have been improving,
Look at the current generation iPhone 4, It's got so many drawbacks, still its a best seller.
It's got a lot of things going for it, take nothing away from it.

A fancy retina display, a nice design, a  nice camera, and a lot more!

But compare it to the present generation Android's, its got hardly anything on them!
A retina display is matched by the Samsung Galaxy S with its equally fantastic Super AMOLED display!
Similar processor 1Ghz processor, but the Samsung just feels so much more snappy than the iPhone!

Multi tasking in the iPhone is just leaving the application on pause and letting it run in the background, Android's got proper multitasking!

Widgets!!
They're something Apple hasn't heard off apparently cause nil. The iOS supports NO widgets of any form!
Android on the other hand is all widgets. It's a neat touch as I can do almost everything from the home screen itself!

Flash support.
From the start, everyone was wondering what about flash support for iOS?
Suddenly out of the dawn, this relatively new OS called Android pulls an ace out of its sleeve with its new version(2.2 froyo) of its OS coming with flash!

That was a huge blow. Flash wasn't such a big deal when everyone was on 2G networks, suddenly when we got onto 3G and speed started to improve, people started opening sites which were made for computers with full flash support expecting to see similar pages on their mobile phones, only to find that all they've got is box telling them that their devices don't have flash.
With android all that's changed!

I used to be an iOS fan. Suddenly, one day someone offered me a go at the nexus one!
Everything changed, that live wallpaper, that simple idea of Homescreens and widgets just captured my attention!

Now that I'm an Android user for good, its weird everytime I use an iPhone, when I wanna go back, I keep frantically searching for the back key, then realise its absence and I realise that I've got to search for a rather outdated tab to go back in the iPhone on the screen!

At the end of the day, an iPhone will be an iPhone and an Android will be an Android. iPhone got the name, while Android which has so much more to offer just has due candy and function.
Android might be superior, but it needs a HUGE phone. Something on par with the success of the iPhone.
Marketed well, Designed well, and updated often.

Thus, an iPhone killer will only come into existence when it kills the iPhone name, not the single phone.