IDG Answers is a community of experts who are passionate about technology. Ask a question or answer one below.
I'm not so sure. Tablets are sweet for certain purposes, less so for others. I love watching me some Netflix on a tablet, I hate drafting documents on one. So I can see how tablets could be the center of the consumer computing universe, but I doubt it will be the case for us working stiffs. The big thing is the keyboard. Sure there are cases that contain keyboards and you can use apps like Swipe that make "typing" on a screen more bearable, but I am willing to bet that I can type 50 more words per minute at a conventional keyboard than on a touch screen. Same with using spreadsheets. Sure, I can do it on a tablet, but I don't like it.
But there is one thing that could improve the usefulness of tablets greatly, the use of voice, and Apple is already leading the way down this road with Siri. If you could cleanly dictate or manipulate data through voice commands as smoothly as you can currently with a keyboard, I could see a lot more laptops being displaced. Of course, then you are going to go through the day with the never ceasing din of everyone talking to their tablets. That may sound like a little joke, but it isn't very funny if you have had the experience of waiting in line with someone who loves talking to Siri on their 4S.