Oh, the kind of software I think of, a large Danish-English, English-Danish dictionary, would never be accepted by the AppStore as the data belongs to the publishing house Gyldendal - unfortunately this house doesn't seem to be interested in getting out dictionaries to iPhone users ;-(.
Earlier this year, however, they /did/ publish proper dictionaries between Danish and English, German, French and Spanish for MacOS X. With
110.000-150.000 words each. A competing company has, though, published dictionaries for the iPhone but only with 35.000 words - making them almost valueless.At present I'm using Audio Shorter Oxford English Dictionary [600.000 entries] and Oxford's dictionaries to and from other languages [160.000 entries] on my iPhone. And Gyldendal's Dictionaries + Oxford English Dictionary [all 23 volumes] on my Mac.