That approach works for current tablets, may they be iOS or Android, since they are consumption devices. This has a number of consequences. The first is that you have a Windows, Macintosh, or Linux machine that carries the real weight. Thing is, are people going to want to have a real computer and a tablet in the future? Those of us who love gadgets, sure. People who don't want to deal with lots of gadgets, doubtful.

People who actually create content on their computer are going to see things differently though. If you have enough data, you're probably going to want to backup your data. Sure, you can do that on the cloud, but there are a bunch of boundary cases. Are you dealing with confidential data? Your employer (and, in some cases, the law) won't accept that. Are you dealing with a lot of data? You probably aren't going to want to cough up the monthly fees to store your data online. Are you scanning or printing documents on a regular basis? I'm sure that you can get wireless devices to do the job, but there is a high probability that you'll be using a wired device.

Reliability is another factor. Wireless works great when you have a handful of devices and live in a spread out community. After that, you're dealing with RF interference. The problems may be infrequent, maybe once or twice a month, but you don't want to deal with those problems when you are working on a deadline.

In time, things may change and this tablet utopia may come into being. We could stick to desktops and laptops. To be sure, some people will. The thing is, most people will want tablets because of the convenience (and trendiness). So, until that tablet utopia arrives, we are going to need tablets along the lines of the Surface.