The tablet market is too young to be regarded as miniscule. Software-wise, we have only started to think about touch input seriously. There still so much that can be done.
This strikes me as the right answer. We're not really sure yet. What if you can do input via brainwave headsets at 100 wpm in 5 years? Not impossible; you can type via brainwaves, right now.
Tablets could become nearly magical in less than a decade.
Tablets could become nearly magical in less than a decade.