Hi, I have setup CalendarServer 2.4 on a Fedora 13 virtual machine along with a local XMPP server. The calendar server is working great, I have already tested it on iCal and an iPhone! I was wondering however if there was a test to see if the PubSub push feature was working correctly (this is the main reason I chose to use CalendarServer over other calendar servers). The last time I tried using CalDAV (with Sunbird & Apache) there was a problem where if users did not refresh the calendar before publishing, any other user's changes would be lost. The iPhone and iCal did not seem to have this problem - I could delete, edit or create events concurrently and changes would sync to both calendars however the changes were not instant, and in many cases I had to force refresh on iCal to see the changes made from the iPhone. Regards, Stewart