I just installed everything and it works, but I have the same problem with syncing as I had with the official plugin: some calendar events could not be received. For the first sync I reset the N900 and had all calendar events and all contacts copied from the Mac to the N900. Unfortunately 56 events were randomly left out; the same events that the official plugin also could not copy. I haven't seen anything that the left out events have in common. They come from all three calendars I copied to the N900, with and without alarm, full-day and non-full-day events, etc. Does anyone have any idea?