Well, I installed it on my 3GS, rebooted, freed memory and, yes, I did get 76MB RAM average (usally 20-30MB), but when I open an app, it freezes and either resprings or enters safe mode

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So I uninstalled it, opened iFile and deleted the swap file, rebooted my device, re-freed memory, and, yes, there was a lot less RAM, but there were no crashes and stuff

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I think I am going to leave this uninstalled 4 now.