Tomaja The picture saved in the phone's Gallery should have the same name as the JPEG and FITS files saved on the S50. I frequently need to cross reference them and I have to use the file creation date and time to achieve that.
Another simple feature request is to save the image and the mask layer with the circles and object names as two separate files - the info layer is nice to have but once it's in the image you cannot remove it. I go around this problem by always saving two images, obe with the mask layer, one without, then I have both and I can even create the layer by subtracting the two.
The easiest thing to do would be to save two gallery images, with and without the mask, in the same folder on the S50 where everything else is saved, you would not even have to rename them then. This should be trivial to do.