Guess this is just a calendar that can be published on the web
Not sure how useful this is, but if you want to have a shared calendar you can use this (it’s free) or perhaps google calendar and making it public
http://30boxes.com/widget/8157932/JonathanCamp/87ae57397d7bbef2f7f664358cdc1341/0/
Web Notes and Ramblings 