EDIT: Update! SU Checker 1.5 has been released!
I want to share my latest application with you: SU Checker
This application checks the availability for the su binary (root). It doesn't root the phone!
Having problems with su? Do you even know if it is installed on your current rom? Here is the solution for that "problem". This simple application checks the availability for the su binary. The perfect application for customrom developers!
Link to Android Market
Direct Android Market link
Play Store link