Working while mobile is one of the wonders of the digital age. You really don't need much as a creator anymore besides some power and some space to do your business. You don't even always need an internet connection, and sometimes, not having that connection is a boon. The internet can be a distraction. The vortex of kitten videos, the warren of “research” that turns into just looking at interesting things, the search for the right expression turns into looking at...ahem… “other” things.
Working mobile means that some of these distractions go away. It also means you can get things done when you're on a deadline.
But you have to want to do the work. Being able to work while on the go doesn't mean much if you don't have a little forethought and bring your tools with you while you're out and about. A sudden weekend jaunt somewhere means you have to either take the work with you, you work harder when you get back in order to get caught up, or you don't go. Since it's sudden, a weekend jaunt can't be planned. (I recently took a trip to the Grand Canyon. It was a weekend thing. Since I knew I was going beforehand, I made sure I did the work I had in front of me done and scheduled to go up so that I didn't miss a day and so that I didn't have to work any harder to catch up when I got back.)
Granted, the ability to be mobile only works if your workflow is digital. If you're analog, you may have a problem. (This is mostly for artists. Today, most writers do their thing either with pen and paper or with some sort of computer, be it a smartphone, tablet, laptop, or desktop. Their mobility isn't a problem. There are precious few books that are hand-lettered anymore, and I don't think there are any that are color-coded anymore. This means pencils and inks are most often analog.)
The ability to be mobile should not be discounted. It may not be “easier” at first, and it may not be “better,” but it is definitely different.
And it's going to be the the de-facto way to do things in the near future.