Well, Epic Citadel just came out. And I want to play it. So I go to the App store and try to download it, and I can't because I'm on 3.1.3 and I need iOS4, which is oddly called 3.2.0 (that's the version number for iOS4, right?) Anyway, I think I've heard of a Cydia app that lets you launch applications that require a newer version on a older iPod. I'd like to know if this is possible. If not, how can I upgrade my iPod (Touch 3G) to iOS4 while keeping my Jailbreak and all my Jailbroken items? Thanks.