720p AV sync update
The rest of the world finally catches up to Test Lab:
There are 9 people on the Test Lab team with an Arc and I think they’ve all got the same issues as I was experiencing, what’s strange is that the issue wasn’t present on the X10HD. Anyhoo, hopefully there will at least be some sort of developer post about this soon, followed by a firmware release to fix the problem.
In the meantime, it should be possible to take non-HD video and not experience any sync issues. And the standard still-image bit of the camera still takes the most fabulous photos!