After over six months, I finally got it together enough to release the next minor version, 1.0.4. This release is a lot bigger than +0.0.1 gives it credit for though -- it includes exponential performance improvements from 1.0.3, a completely restructured database storage model, many tweaks and bugfixes, and more, making it the most stable and clean release to date. A lot of work went into this (as you might expect from a six month wait) and it should be a perfect stepping stone to sub-albums and further improvements in 1.1.
Read the changelog for a list of the changes, I don't feel like listing them again ;-)
The other big change is sort of secretly included in this release, and it is the backend infrastructure for sub-albums. There is too much yet to be done for an actual release touting that feature, but most of the code is there already. You can try it out with the sub-albums development testing theme, which you can download here if you want. [b]NOTE that most features are missing[/b] and all you can expect is to browse sub-folders using the theme. There is no appropriate administrator interface, sorting, paging, or anything else you might expect. No guarantees about anything if you actually want to use it ;-)
The next step from here is 1.1 -- which should definitely come faster now that much of the work is done. I plan to include full sub-album support in a revamped admin interface, EXIF metadata, ways to move and rename folders and files, and much much more. I'll keep you updated from now on.
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Update: 1.0.5 fixes the PHP_SHORT_TAGS problems. Sorry about that -- I will run my development environment with them off from now on.