I’ve been playing arround with google calendar today and must say i like it very much. Although, one thing is missing, the one thing that makes gmail so powerfull: Labels (or tags).
By adding more calendars you can of course make a distinction between your private, you work and other events but it’s not possible (i think) to add an event to more then one categories, like you can add more then one label to an email. I think that tagging or labeling would make google calendar a more powerfull product.
tags: tag label google calendar