I think you might be interested in this: https://gist.github.com/erkattak/071ab8af1fc64013d955 https://gist.github.com/erkattak/071ab8af1fc64013d955 xCal: iCa

I think you might be interested in this: https://gist.github.com/erkattak/071ab8af1fc64013d955 https://gist.github.com/erkattak/071ab8af1fc64013d955 xCal: iCal and XML together. Unfortunately, it is not popular at all.