Following on from this suggestion Pixalo now offers a gallery RSS2 feed. It is not fully validating as that would require the format to include each users email address and we will never display those publically, however it is still fully functional and should provide the data you required
Code:
http://www.pixalo.com/gallery/rss.php?type=rss2
The feed draws the latest 50 uploads from all galleries. If you now wish to take that information and format in a different way then that part is up to you to do with whatever parsers/software you prefer. I have used Magpie RSS in the past with good results
Have fun
