Can someone please provide links or info on these competitors and what iPhone "killers" they're supposedly producing? What exactly is it they will be killing?
Reality is that while it's a huge success for Apple in terms of making a big profit (huge profit margin on devices like this), it does not in any way threaten the existing world wide mobile players such as Nokia, Motorola, SEMC etc.
Furthermore, mobile phones are not Apples core business, and entering the market with the aim to become a top handset manufacturer requires a LOT more than putting out one cool albeit heavily locked down PDA, bolting on cell technology and convincing one operator to sell it as a phone.
Personally, I think the greatest long term value for Apple in this whole enterprise is the strengthening of the brand that will hopefully enable them to do better in their core business areas.