Hello. I've recently noticed this topic somewhere: http://modmyi.com/forums/file-mods/682255-speed-up-your-iphone-ipod-removing-launch-daemons.html I was wondering if this would boost my iPhone 4s as now I notice some little, but quiet annoying lag when playing games like GTA or any other that requires nice amount of power. Also I was hoping that this would reduce battery usage quiet a bit. However I don't know if this isn't outdated, is it safe? Will this boost my device noticeably? Also, is there any new tutorial on how to tweak newer iPhone generations in that way?