@Update: 2nd November, 2007: Updated guide for Lightning v0.7 and Provider 0.3.1 releases — Jonny For a long time I have been looking for a rock solid calendaring system. I’ve gotten too used to working for companies who have Microsoft Exchange (or, God forbid, Scalix) installed which allow me to edit and update a calendar from multiple locations and even sync it with my Mobile Phone. When I first