Due to issues in Python environment building on OSX 10.8+ the generated bundle does not work (anymore) on earlier versions.
I put a download link for 10.7 and earlier on KCC main page (
https://dl.dropboxusercontent.com/u/...c1_osx10.7.zip) with the latest code. When we'll release 3.6 I'd rebuild the bundle, and that will probably be the last release to support earlier OS X versions.
With the expected renewed kindlestrip, not that 3.6 actually lacks anything, though
