Missed the point
I think you've completely missed the point of this device. There IS an explicit link between the ink data and the audio, such that if you write something in the notebook while someone is speaking, you can then go back, tap the pen on the paper and the pen will play back the audio that was recorded as you made those pen strokes.
The same is true when you have the files in the computer - if you click on some text on screen you hear the audio that was recorded as the pen strokes were made. If you hit the 'play audio; button the text that was written as the audio was recorded is highlighted on screen as you go along.
Uses? If you need to get something down verbatim and mess it up, you can just write a note such as "QUOTE HERE" and then later go back to the audio to transcribe "We're leveraging our synergy to accelerate our paradigm shift to cloud based virtualisation of our app store."
If you look online, the LiveScribe website also has some public documents which link audio and drawing/writing, so you get a sort of 21st century Vision On/Rolf Harris style 'can you see what is yet' experience....