In the USA, anyway, Ivan Illich has made his debut in the iTunes store. Available for downloading as electronic books are two titles by David Cayley: Ivan Illich in Conversation and The Rivers North of the Future. They are priced at $12.99 and $11.99, respectively. The downloads are formatted in Apple's iBooks format and are viewable on the iPad, iPhone, or iPod Touch.
Notably absent from the electronic book listing is Illich's In the Vineyard of the Text. (Amazon doesn't sell this title as an electronic book, either.)