Additional menu for POIs from Settings>Map; Lil' north-pointer in lower LH crn of map screen with scale under it; Ability to calibrate screen from Display setting; SBAS [WAAS to you Yanks] enabling. Not sure if WAAS et al actually works even if enabled on US/EU units as there's no SBAS here in AU officially, so i can't really check but don't turn it on in my units as it just chews up the battery quicker.

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That's in TWN fw. Nothing else that i can think of. Everything available to US/EU fw still works afaik.