For those who have not seen the Availability update

We use this a lot in EMIX

http://tools.ietf.org/html/draft-daboo-calendar-availability-02
April 14

“The single biggest problem in communication is the illusion that it has taken place.”  – George Bernard Shaw.
Toby Considine TC9, Inc
TC Chair: oBIX & WS-Calendar
TC Editor: EMIX, EnergyInterop
U.S. National Inst. of Standards and Tech. Smart Grid Architecture Committee
Email:

Phone: (919)619-2104
http://www.tcnine.com/ blog: www.NewDaedalus.com