I have been lead to believe that the older English spelling uses "Z"s in many places which modern English now uses an "S".
Therefore, localiZe would actually be correct.
The irony ("like Goldy and Bronzy but made of Iron") is that by mis-spelling the modern spelling of the word, Bill Gates has taken us back to the traditional way!
However, most of the stuff under discussion here (sky blue thinking, deep water thoughts) is what was know as "management w@nk words" when I was in the RAF a handful of years back. Blunty speak, Marketing speak, Management speak - all the same old cr@p with different names.
Well that's my bit of "joined up thinking" that has "squared the circle" and put "clear blue water" between myself and others.