Not only is it a wonderful book, but you can get a CD-Rom (Mac or WIndows) from www.Tivola.com
It is enchanting, keeping entirely in the spirit of the original: child-like, poetic, romantic and just beautiful.
You can hear the text read by Kenneth Branagh, and watch the pages turning as you do so. As an extra, there are Flash/Macromedia animations on almost every page.
Beyond that, however, you can explore all the worlds portrayed in the book, from the Geographer to the King, and of course, Asteroid B-612, where you can look after the Rose, clean out the volcanos and watch for Baobabs.
Best of all, you can come to Earth and try to befriend the fox. And believe me, you need real patience to do that. I have to say, my children have not been enchanted by it, but I am completely in love with the program.
We have a lot of so-called childrens' software at home, and this one really stands out. It is clear, to me at least, that the person who created it really, really cares about the book. I kind of imagine that if Saint-Exupéry were around today, then this is the way he would have published it. It adds more dimensions to the story, and takes nothing away from your imagination. Nothing.
If you love the book, I'd say buy the software. At the very least, download the free sample. And the quality of the website might give you an inkling of the care that has been put into the book.