Spanning Sync is finally out of beta and release 1.0 is available. They’ve adopted both an annual ($25) and once-off pricing model ($65).

In the few days I’ve been using it, I’ve been very impressed with the product. If you’re still fighting with synchronising calendars between devices, sharing calendars with others, etc. give it a try – the combination of Spanning Sync and Google Calendar seems to be a winner.