Pop quiz:
In six or seven years, when MacBooks are all dead, how am I supposed to import movies from video cameras, edit them and share them? Am I really supposed to trust this to some touchscreen device with a tablet-class processor?
I know everything will be faster by then, but 1080p video cameras might be the standard by then, meaning you'll need more processing power and storage.
You also can't convince me that everybody will be happy with a 10-inch screen for all uses. If Apple releases a 21.5" Thunderbolt display, I foresee many more people buying one of those and a MacBook Air or MacBook Pro. Those will co-exist with iPads nicely.
Things just don't get faster, everything on a device changes. Hell maybe we can wirelessly transfer video by then, and sharing and editing will be like butter on a touch interface. Or maybe it won't be touch at all. Maybe it will be a 45" iTV with and iPad like interface to edit on so you can literally touch up spots in a video or photo.
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I don't understand why people say "we can't predict..."
Yes we can, people here do it all the time. For some reason people think that their lack of ability applies to not only them but to everybody else here.
For instance, this whole HP Touchpad deal was a big surprise to everybody. It didn't take rocket science to realize this would happen. It was priced too high, nobody knows about Palm, and I didn't see one ad for it on television.
They released it early and it got universally sub par reviews then updated it a month later and made it usable. You'd think with a company on its last leg (in the consumer market anyway) they'd be smarter about their decisions.
I think this attests to many companies not realizing how far their heads are in their asses (HP/Palm and RIM are two great examples).
You can, but we have no idea what kind of crazy new system or technology will arise in more than 5 years. Just saying that the device normally revolves around or intends to integrate that new whatever