Yeldarb has released a masterlock PSP application. Here is what he is saying about it :

Alright everyone, here it is; my first application for the PSP. It’s called PSP-ick, and is a lock picking program. You see, Masterlock (combination locks) are very predictable, and their codes follow an algorithm. By spinning the dial and finding sticking points, you can find the last number of the combination. With this number, there are only 100 combinations that your lock could have. This program determines those 100 combinations given the last number in the combo.