What is important to remember however is that Europe is a much advanced marketplace for Mobile sales than the US - and Europeans use their phones for much more than Americans do.
Many of my American friends are only just starting to grasp the concept of sms text messages - whereas in Europe, pretty much everyone uses sms (more so than calling in a lot of cases).
The fact that iPhone makes all these things far easier will make it appealing to Europeans - as well as the 'status' that will go with having one.
The only thing that will impact the sales figures is how accessible it is to people. If it's contract-only (i.e no Prepay) it won't be anywhere near as successfull as it otherwise would be.
Yes, Europeans use their phones a lot more than Americans do, but that's why the iPhone is
less competitive there. The iPhone represents less of a "new" concept there. The European market is used to having much more capable phones, and they are also used to having more of their phones unlocked; a feat that is only partially achievable on the iPhone. Combine that with less consumer purchasing power, unknown pricing on Apple's part, and possible competitors jumping in before Apple, and you see why I came up with my estimates.
I think we're getting too excited about a single phone. "Most people" don't care that it's an Apple, they want cheap, small and simple. Thinking of the huge market for kids here as well as non-techno-savvy adults.
I don't know how you got the idea that "most" people want a "simple" phone, but I think it's partially flawed. Kids and tecno savvy adults aren't the only ones to whom the iPhone appeals. Add professionals like doctors, lawyers, MBAs, CEOs, and world leaders to your list, and then we have a better key demo to work with.
Just some numbers; the US has a population of around 300M. Of those, say, a third either have or can have a phone (=100M). Of this market only 20% would be interested in an iPhone type device (=20M). Of this only a third would be in a position to buy one (=6.6M). And of these people a lot won't because of restrictions in their current contracts, etc., etc., etc.
Your numbers are fundamentally flawed. The US has a mobile phone market of
233 million +. Seeing as this is 2.33 times greater than you thought, I'd say the built in US market for the iPhone is more likely around 15 million. Your point about old contracts becomes null after about 18 months; most people who want one will know when their contract expires, and will plan their purchase around that time.
One issue with the iPhone that would stop it being successful is, perversely, its success. As more iPhones are sold they become more common and looses it's appeal to the fashion victims - those people who are in the market for buying an iPhone because of it's trendyness and rareness. Take that away and these people start looking around for the latest trendy Sony/Nokia/Samsung partnered with Channel/l'Oreal/Armani/Hillfilger phone.
Sadly, yes. Apple products do seem to be in vogue, but that doesn't mean the technical merits of it won't be enough to keep driving sales.
Take away the pent-up demand in non-US markets and the numbers CalBoy quoted look awfully optimistic and very high.
Which is why I said, "this is where it gets scary."
Maybe this could bode well for an unlocked phone.
I hope, but I'm not counting on it. But if enought people can make the process fast and easy, Apple might be compelled do it for you after its 5 year deal with ATT runs out.