I have this combination and LOVE IT! For under $30 you get all the diagnostic power of a $500 ODBII reader, I actually think it's better since it has a touch screen interface. It shows the readout from every sensor in your car in real time on easy to read gauges too! When it finds the code from the car's computer it links you to a forum where people discuss what the code means and what they did to fix it.
Android Phone
+
Bluetooth ODB Reader
+
Torque Pro
=
Diagnostic Bliss for Automobiles
edit: And it will let you turn off the check engine light on your wife's car!
Actually, I was planning on getting the codes and call my b-in-law tonight; he works on cars in his spare time, lol. A few weekends ago, he re-built the rear-end on my sister's Yukon.

