The March/April issue of IEEE Internet Computing has a great article written by Lisa Dusseault, OSAF's standards architect and author of the IETF CalDAV draft, and Jim Whitehead, Assistant Professor, University of California, Santa Cruz, founder and former chair of the IETF WebDAV working group. This article is a terrific overview and technical introduction to the new standard that OSAF is using for sharing calendars in Chandler.
Click here to view the article.

Article Abstract: Building on a decade of work on calendar standards, the CalDAV protocol promises to unlock the potential of widespread calendar interoperability. It permits calendar sharing over the Web and reduces the coordination cost of scheduling meetings across and within organizational boundaries. The protocol extends the Web Distributed Authoring and Versioning (WebDAV) protocol — itself, a simple extension of HTTP — to provide services for calendar maintenance, queries, event scheduling, and security.