O.K. - got this out of curiosity as I am a student of Japanese at University. 本当ですよ。
Essentially an audio phrase book that is broken up into categories to make it easy to navigate.
Native Japanese speaker has done the recordings. and they are a nice and USEFUL selection. :-)
Could it be improved? Well - unless you can READ kanji/kana or have a good memory you will have to get someone to listen to your iPhone when it plays the sentence or READ it (has large screen mode to do that) :-) - Perhaps should consider having the sentence displayed in romaji (roman charectors) so that you can pronounce it.
At this price? - very good - definite 8/10
TackMack about Lingopal Japanese - talking phrasebook