> i'm not asking for 10 years, just more than ~2 What application released two years ago isn't running on Mountain Lion today? The only one I could think of wo

> i'm not asking for 10 years, just more than ~2 What application released two years ago isn't running on Mountain Lion today? The only one I could think of would be Xcode. > there is no technical reason why the latest iPhone SDK cannot run on Snow Leopard[0]. Snow Leopard was released in 2009. Just because something can be hacked to run on an unsupported platform doesn't mean you won't encounter an issue. It's not just about dropping a platform as a target; it's also the fact that it won't be officially supported (meaning no guarantees or bug fixes), Apple's engineers won't be going out of their way to make sure the SDK and the simulator run, and they won't help you with technical support. If it does work, and there aren't any known issues (which I doubt), it's a happy accident that could break with any update.