I noticed on my old iPhone 3 and on earlier versions of IOS on my iPhone 4 that my phones would sometimes crash and the only remedy after my phone becoming "bricked," would be to restore the phone to the latest OS which of course wouldn't be jailbroken... After dealing with this when I lost my IOS 4.1 jailbreak and being forced to "upgrade" to IOS 4.3x and going w/o a jailbreak again until IOS 5.01! I'd rather not play this cat and mouse game with Apple... Long story short, is it safe to upgrade current apps/ buy new apps from the Apple app store or should I just stick to the more "trusted" apps in the Cydia store?