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I'm an iOS developer and I have the original iPhone. Most apps written for < iPhone 4s tends to work ok on my iPhone 2G (i.e. apps written for iPhone 3G or 3GS

I'm an iOS developer and I have the original iPhone. Most apps written for < iPhone 4s tends to work ok on my iPhone 2G (i.e. apps written for iPhone 3G or 3GS).