That the pin for the kids is just the best, has been frequently mentioned. Yesterday I also found that it is technically really thought out - no binding to specific operating systems or any special programs. After our son got from Santa Claus a new book had for us for the first time, of course, only the pen be updated. Connected to the Linux computer, the pen reported as USB memory, downloaded from the website, the audio files for the book directly to the pen - that's it! Super easy, compatible and comfortable. Theoretically that would then update even with a tablet possible - I will test on occasion. By the way: After the pin with the new book was used, he did not want to put away and to work through the book from cover to cover him. :-)