Have you looked into how KMZ files could be supported? Given the nature of KMZ, I'm guessing it would just be a matter of getting to the archived .kml file zipped up inside... this looks promising as a starting point: http://gildas-lormeau.github.io/zip.js/
I may fork and implement this anyway, but wanted to see if it was on your roadmap.
Have you looked into how KMZ files could be supported? Given the nature of KMZ, I'm guessing it would just be a matter of getting to the archived .kml file zipped up inside... this looks promising as a starting point: http://gildas-lormeau.github.io/zip.js/
I may fork and implement this anyway, but wanted to see if it was on your roadmap.