It occurred to me that being able to save more than one camera position would be useful.
And having the current saved camera position reliably returning in the next session would be just as useful. I have a moderately complex scene with a number of viewpoints designed in, and a couple of obj import figures placed. Saved the camera using 'page up', and next session it returned to a position near to where it should have been, but not exactly the same position, height or angle. (Version 1.4 on Windows 7).