I bought the book "Physics for Mathematicians I" by Michael Spivak (http://www.amazon.com/Physics-Mathematicians-Mechanics-Michael-Spivak/dp/0914098322), have worked through quite some chapters and love it. I am really looking towards the sequel(s) and wonder how far the author, secretive as usual, has gotten with them. Do you have any information on this?
Update: It's very sad to hear Michael Spivak has passed away last year, thanks you ho-boon-suan for letting us know.
