Well, only you know the answer to that question. Especially if you even include Galaxy Note which is far more of a device overall than the N9 or SGS2. (due to far better/bigger/useful screen) I have a Note also and it does more things than any other phone I've ever had. (and does it better than most also - especially media consumption) However, N9 gives you an amazing multi-tasking UI/UX that WP/iOS/Android just cannot. (Not even remotely close!)