The potential failure of the iPhone as a truly revolutionary platform.
The reason: no SDK to harness the true power of Mac OS X and the frameworks contained in Apple's smart cell. From the article: 'According to Apple, "no software developer kit is required for the iPhone." However, the truth is that the lack of an SDK means that there won't be a killer application for the iPhone. It also means the iPhone's potential as an amazing computing and communication platform will never be realized. And because of this and no matter how Apple tries to sell it, the iPhone won't make a revolution happen.
So let's hear your ideas for a killer app for the iPhone ... c'mon, if you want Apple to be open about it, let's hear it. I think the iPhone in and of itself IS THE KILLER APPLICATION of preexisting applications.
I do see the potential for bluetooth GPS - but honestly you should expect that Apple WILL introduce this. I think the potential for web apps is actually pretty amazing - tons of different database applications - just as Apple showed. These programs could easily be charged for through a secure web login as well.
It seems to me that complaining "developers" want to make money from the apps for the iPhone and don't want to cut Apple in on the action. They want FREE and OPEN access. Give it time. You have to understand that opening the iPhone would also open the iPod - this could mean hacks galore for iPods ... something that Apple has been very good at thusfar - securing.
I hate when people complain about not having options then can't think of WHICH options they would want. It's like Democrats claiming the war in Iraq should be fought differently - HOW THEN???!!!
[UPDATE] A cool iPhone App was just released today: OneTrip