There is now
an iPad app for introductory and intermediate Greek readers. Its name is Attikos and it includes a selection of familiar texts, including morphological information. The author is Josh Day, himself recently an intermediate Greek student.
Link to the app store page:
http://itunes.apple.com/us/app/attikos/id522497233?mt=8
. . .
Texts include the Iliad, some Lysias and Plato, and the Antigone. Some texts have been parsed completely; no translations are included, however.
HT: Charles Jones.