But you are wrong. It is not about hardware, it is about cost and capability. While IOS is great and the devices are great, and constant Internet access is great, what is different this time is content creation. An on screen keyboard, and touch are not sufficient. Steve actually recognizes this. This is why, unlike windows, that touch is on a touch pad. You still need, and will always need a PC to go along with your IOS device. And IOS features will make it to the OSX machine, but it will not supplant it.
Apparently, listening to this board, many people here are not professional users and don't sit in front of their computers most of the day. But this doesn't appear to be true for SJ or the people at Apple. Lion is all about being more productive during that day, both expanding and narrowing the users focus. Having everything open and the same, and narrow casting down to a single app. Lion is going to amazing.
But it's ok, people like you have been wrong before. I have seen it a thousand times.