I have some suggestions on how to make it even better, and Mac-friendly :-)
As you understand, im using a mac, so my only choice to uploading multiple pic's is via the ftp without having to wear down the click-button :-)
This is not very optimal for me, or anyone else who don't want people to mess around in the web-dir, so i got to think about Menalto's gallery-script (which is way to bloated) where i can upload a zip-file with multiple images inside, and the script extract the script and adds the images. That is a really neat feature.
This way, the upload feature could be system-independent with no .reg's, ftp-hassle and system-dependant scripts.