The print version of the PONS German-English Dictionary (sold in the US under the Harper-Collins name) is hands down the best dictionary out there. Although this version cant have all the entries in the full dictionary, its nonetheless the best on-the-go dictionary Ive used. Unlike almost every electronic dictionary application out there, this one is more than just a mere lexicon - it includes usage examples and variations. That being said, the interface simply wasnt ready to be released into the wild yet. Taps on the word often do not work, and behavior is often inconsistent. (I just now held down my finger on a word and instead of showing the definition, the interface inexplicably scrolled down about one and half screens).
Im sure these flaws will be worked out over coming versions, but if you can put up with it for the time being, this is a great app. When they fix the interface, it will be the best.
nixzusehen about Wörterbuch Englisch PONS