That last release of SVGSlice was pretty poor, I'm afraid. Mixed up the versions of files I had, and since Inkscape is currently crashing on my ppc machine, I hadn't noticed.

Anyway, I think it's all fixed, but in the process of testing for a new release, I've noticed that Inkscape 0.40 on my x86 box seems to export the hidden slice layer along with everything else.

Is 0.41 the first version to support ignoring hidden layers on command line PNG export, or do I need to start bug hunting this one? I checked the .41 changelog, but maybe that new feature was too small to get a mention?