I had that "be able to change the settings of your user" thing in my TO DO list for longer than I want to acknowledge. It's done now. There are no fancy Ajax tricks, but you should be able to change your name, email or password easily.
As Matthew suggestted in the forum, I have also added email alerts, so you can follow new comments on your photos by email.
And as Thorsten suggestted, you can delete your comments. I still have to make them editable.
I also made images open in new pages when you clicked on the thumbnails in the home page. Unfortunately, after using it for a few days, I concluded that it was a bit confusing. You ended with a lot of windows. That's exactly what Eduardo predicted, I guess that sometimes you have to make the mistake yourself.
Next I want to implement the reading of EXIF tags, general tags on your photos, and some improvements to the home page. But probably not in that order.
Oh, and as you can see, we're really earing our users feature requests, so keep them comming!