What happens when both Cydia and Installer have the same app/addon and I installed it from both? As you all know, when you download something from Cydia that requires another thing to work (like if you download a Winterboard theme, it requires the Winterboard app to work), Cydia will automatically download the prerequisite app for you. So here's a real example: On the first day of my jailbreak I installed SBSettings from Installer. A few days later I wanted iMobileCinema SBSettingstoggle (I'd already installed iMobileCinema from Cydia) and could only find it on Cydia. SBSettings is required for the SBSettingstoggle (duh), but Cydia doesn't know I already have SBSettings, so it downloaded and installed and unpacked SBSettings for me. I would have taken a screenshot of the installation log but it didn't occur to me then. So, do I have two instances of SBSettings on my iTouch? Will my SBSettings hang/crash/freeze when I start up my device because there are two clones of it fighting to be loaded? (It seemed fine after I restarted springboard from Cydia but I don't have it with me now to test what happens when I restart the iTouch) Or do the files simply overwrite each other or merge or something? Do I merely get leftover useless scrap files that do nothing?