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by gaiusparx
5832 days ago
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I think its case by case. Some find it faster after the upgrade. I suspect its cause by some data or apps during the upgrade. Some find it running alright after doing a clean install. Or maybe its specific to certain batches of iPhone 3G hardware we will never know. Apple is rumored to release 4.0.1 pretty soon, so hopefully it will solve this slow issue on 3G hardware. iOS 3.x code base is Leopard base. iOS 4 is Snow Leopard. So by right iOS 4 should run faster if not smoother on same hardware base on Leopard/Snow Leopard upgrade experience. Lifehacker has a guide: http://lifehacker.com/5572003/how-to-downgrade-your-iphone-3... |
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Along with other changes, many of which do not affect the iPhone either, the biggest change in Snow Leopard was to switch all binaries and the default compilation target from IA-32 to AMD64. You shouldn't expect the Leopard -> Snow Leopard upgrade experience to translate to ARM-based mobile phones.
PS: I upgraded an iPhone 3G to iOS4, some apps are slower and others even crash more often, but the home folders and the "Cellular Data" setting in Settings->General->Network make it up for me.