Like many out in the blogosphere, I was an early convert to Flickr, particularly when I discovered how easy it was to post photoblog messages from my phone with it. Since then, I've been experimenting with it a bit, using it as an image server, and for uploading some files. The one thing holding me back getting a full Pro account was that I want people to see my photos on my site, not the Flickr site. So after spending all day searching for something that would integrate with Movable Type (there's a fine plugin, but it doesn't quite do what I want), I realized that what I wanted was a PHP solution like Gallery, but that used the Flickr API to pull the images from my Flickr account instead of storing them locally. It turns out that the "plugin" Flickr Gallery 0.7 that I kept dismissing because it was for WordPress not Movable Type is exactly what I was looking for. That's because it's not really a plug-in, but a pretty-much stand-alone PHP module. Super stuff. And unlike Gallery's bloated PHP installation and headache-inducing configuration, this is needs only two files. Brilliant. So I guess I'm one of those clever people who can figure out how to make it work without WP.
It's still in an early test phase, but seems to work well so far. You can check out the beta version of the new PhotoSpace. Once all is working, I'll switch over my existing albums from Gallery as well as some other collections of photos I've been too lazy to upload.
Update: While I had initially installed version 0.4, when I upgraded to 0.7 it broke. Silly guy went and added some feature that required WordPress. So I downgraded to 0.6, and it's working fine again. See, I am smart people.