Remember wireless data networks five years ago? Slow? That's what the Peek uses.
If you can write an interface that can convert the text used by Peek into database format into these applications you are referring to, you would be sitting on a gold mine by reselling these Peeks to tradesmen who cannot do anything unless they BUY THIS PROGRAM. Until then, you would be seeing someone else getting rich because they read it here. Sady. While you complain about it being worthless.