Can anyone identify this chrysalis? (Identified)
I've found it - it's a Common Rose Swallowtail (Pachliopta aristolochiae)

A few images on this page.
http://flickrhivemind.net/Tags/aristolochiae,butterfly/Interesting including these two





There is a picture also at http://en.wikipedia.org/wiki/Pachliopta_aristolochiae but this one is upside down compared to mine.



Mystery solved.