It all depends on what you define as 'killing' the iPhone.
If it's merely better technical specifications and/or features, then many devices do this already.
But we all know, that it's a lot more than that. It's a combination of everything;
1): Brand recognition. - This is
huge, and goes back at least 10 years, to when Apple became cool again with the first iMac introduction.
You don't see the phrase "(insert desired name here) killer" anywhere else, do you?
2): User Interface. - And I just don't mean scrolling/flipping through a few icons on a home screen. It's the UI in
all apps and menus, that make it such a joy to use. That, coupled with a superb touchscreen, and super-responsive software, thanks to the power of an OSX core.
3): Intuitiveness. - You don't need a manual to use any of the features. It just make
sense when you pick it up.
4): iPod integration. -
So many times I see folks with all manner of different phones, a lot of them 'music' phones, but still prefer use an iPod Nano or Touch for their music and video playing. The iPod has become part of the vernacular. Adding a phone to that is always going to be killer.
5): Safari. - Still by far the most pleasurable browsing experience on a phone, and this is all before 3.0 and the new hardware release.
6): The App Store. - This is just genius. Sure, people have been able to download apps to their Win-Mo, Palm and Symbian devices for years, but never has there been one place to get everything before. No obscure websites to trawl through.
The fact that rivals are rushing to get their 'App Stores'(another name that's entering the vernacular, regardless of what rival 'stores' are really called) active, is proof of this.
7): One device per year. - This is also brilliant. Look how many devices there are from Samsung(worst culprit), LG, Nokia, etc, released in any one year. Prospective iPhone buyers, will know that there's just one device, one set of specs, to focus on, so there is no confusion.
Us geeks/enthusiasts will know everything about all the devices, but the average Joe won't, or simply cannot be bothered, to find out.
8): iTunes. - Being able to access the most popular music store, all on the device, via all connection methods, is another big thing. Again, this has been possible for years on other devices, but the fact that it's iTunes, it's now all DRM-free
and higher bitrate than before, is another blow to rivals.
For any device to kill the iPhone, it'll have to at least match all of these points, IMO.
When one manufacturer thinks they're getting close(Pre), the next hard/software revision will raise the bar even higher.
IMO, the Palm Pre, is the end result of an initial reaction, to a June 2007 iPhone, just like Nokia's N97 is. The Blackberry Storm, was a rush-job, rising out the same June '07 reaction by RIM, just to get a slice of the touchscreen pie.
