Windows, Mac and Android versions are already available. An iPhone version will become available in the near future.
EE9 now contains almost 1500 discourses in 142 books, including the recent titles Yoga Sádhaná, An Outline of Prout, Who Is the Real Guru, and Subháśita Saḿgraha Part 5. A few more books are currently being prepared for inclusion, and will be automatically downloaded into EE9 when they become available.
EE9 also contains a new search function capable of word, phrase, wildcard and proximity search. You can also save searches for later quick access to the list of matching results.
You can download a free version of EE9 and see for yourself (the free version contains only the first few words of the various documents and discourses, to show how everything works).