I noted with interest that one of my images has recently moved to the permanent galleries under "Photography -> Landscape", even though the reolution is 1024 x 768 - I thought images this size could only go into the "Other" galleries. Does this mean that the criteria has changed, or was it just a mistake?

I didn't move the image so I can't say for sure, however the resolution requirement isn't as important now since I added the ability to filter out images smaller that a certain size.

Cool, I much prefer it to be in the "proper" galleries anyway...