You don't even need a jailbroken phone, just a provisioning profile. Objective-C is fully dynamic, so you can override UIView/CALayer so that it sends data to a server whenever it changes and is a child view of the key UIWindow.
They don't say it explicitly, but I would be shocked if Reveal does not work the same when testing on a device.
They don't say it explicitly, but I would be shocked if Reveal does not work the same when testing on a device.