petvas,
what you use your computer for != what everyone uses their computer for.
For my mother the iPad already has replaced her computer.
If all you ever do in your car is head to the store and maybe go see the kids once in a while, you don't need something that can also compete in the indy 500! (see, i can make a bad car analogy too)
Over and over and over again, this forum is not the average consumer, what you do on your computer is not representational. 95% of iPad users don't care about handbrake, don't know what FLAC is, would need google to tell you what an mkv is, and most important, they don't care.
If the next iPad has a simple way to sync and update that doesn't require a computer, it will replace a computer for many users.
Think about it, if Apple sold an airport with a drive for backing up, and itunes built into it, plus the standard printer port, that would be all many people need. Printing, networking, itunes, backup, all in on device. Include an app to control and monitor it and that plus iPad would be the only "computer" many people would need.
Not you. But many people.
I swear, the single biggest issue in the forums here are the inability for people to realize that universe doesn't revolve around them personally.