Adv Lock is a app from Cydia that basically locks Chosen apps from being open with out a password. This is good for when you have siblings or children that like to play with your iPhone or iPod Touch, and you don’t want them getting into your Hacked apps, imagine what can happen if they messed around with Cydia. Also you can pass code lock your SIM for security if anything was taken. (Don’t ask about the Sim lock, i don’t know Much about it) I really use this app with my Cydia, sometimes i accidentally click on it, and it takes a while to load, just to click out of it! LOL. More Pictures inside!!! » Cydia – mAdvLock