I never expected the units to be updated so I was a bit too quick at getting the 9W3. I know the newer ones add a couple of little features like choice of car ringtone, but I can't recall the exact differences between 9W7 and 9WZ (I think 9WZ is newer though).
Have a scan through the latter section of this thread and you should find the info:
Have a scan through the latter section of this thread and you should find the info:
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