This blogger seems to think so. After reading this I straight away could see how travel guides would be ideal as ebooks. There used to be a very popular travel guide in these parts called Africa on a Shoestring. I came to Botswana as a volunteer and all of the volunteers from all of the countries had this book. Twice it let me seriously down by being outdated.
Once my husband and I were leaving Chimanimani National Park in Zimbabwe. We wanted a short way to get to the Ruins. It had rained forever and we were camping with our newborn daughter and all we wanted was to be out of the mountains. So we pulled out Africa on a Shoestring and there was the map with a road that cut through the mountains making our trip, we thought at the time, shorter. What they failed to mention was that the word road was used quite loosely in the book. This road was a very thin, one lane, dirt path with towering mountains on one side and bottomless valleys on the other, and rail guards were obviously considered a waste of money. Once we were on it, turning around was not an option, it could not be done. It was about 30 kms but it took us hours. Luckily, we met no motorised vehicles on the way. I'm not sure what we would have done if we had. For a long time afterwards I had nightmares envisioning that scenario.
In the other case, when my husband and I were just dating we decided to hitch across two deserts (the Kgalagadi and the Namib) to go to the Atlantic Ocean in Swakopmund, Namibia. We had P500, taking this shoestring business to the extreme. We knew we had a free place to sleep in Gantsi before we crossed the border. We needed somewhere to sleep in Windhoek and Africa on a Shoestring recommended a youth hostel. By the time we got to Windhoek, which was a few days later than we had expected after sleeping a few days on the roadside, the youth hostel was no where to be found. It was now a high rise complex of flats which seemed to house only Christians. They were nice, though. They even took us in for breakfast.
The point I'm trying to make is that tourist guides become obsolete almost as soon as they're printed. Ebook tourist guides could be updated continuously. The publishers could constantly add readers' comments. They would be dynamic and, more importantly, always correct.
One interesting thing that Martyn Daniels says in this post is that it is time to stop thinking of books as one big homogeneous industry just because they are all published on paper. There are so many sectors within publishing,each with their own way to be sold. Some are more suitable as ebooks, some may not be. Some can be sold, some given away free. Again, we need to open our minds and step forward into these exciting times.