I had an occassion recently to watch Steve Jobs presenting again:
Uncle Steve demonstrates not only his ability to present by himself, but manages to govern a dozen of lecturers perfectly. If you have around 3 hours of spare time and you are wondering what to do, you can watch them – to see the perfect synchronization between the lecturers and the subjects, at least. And if you think that it is easy to present and preparations in advance are not much needed, see this ;).
As far as the iPhone itself – I had the chance to play with it and my first impressions are controversial. I was really impressed by the design and how easy it is to navigate with the user interface, but on the other hand, after just ten minutes of usage I felt heat from battery on the flat of my hand. I guess that the rumors about the power consumption problems with the iPhone are true. We’ll be able to see if they addressed this issue in iPhone 3G, which is peeking out of the horizon – see the Guided Tour to be hooked up completely ;).