There are a handful of posts tagged with iphone, iphone-4, ios, ios4.
Often the question is OS specific -- how do I migrate my contacts to or from an iPhone -- or at least isn't about doing something with the iPhone device other than running the iOS on it.
Some are device specific (can I install Android 2.2 on my iPhone 3G) so they pass the device tag test even though they might also be redundant. Do they need revising to follow our device tag model? (apple-iphone-3g) or is iphone-3g sufficient? iphone is inadequately ambiguous.
How should these be tidied up?