Do you have synching of all billing events in ICAL (invoicing) with all necessary details: Date send, job-name, client name and contact, amount and pass due date ICal notification?

You can send any slip as an event or to-do in iCal.

Do you mean to send a reminder to iCal for when an invoice is due?
If so, we don't have that at this time. We do however have the overdue status in the client list and a very handy "send statement" button.

What would be awesome is if billings automatically added certain events to iCal calendar as events... e.g. If I billed a client on the 5th, Oct 2008 it would create an event in iCal for that date. The same could happen for other events such as payment dates and more...

This automatic iCal update could be set in the Billings preferences and turned on or off. A very useful feature if you ask me... I am always having to go into mail app and soft through thousands of emails.

Let me know what you think?