Hello,

I just experimented with Zenphoto and Piwigo.

It was a gratifying experience. I have posted a brief review which I hope both Piwigo and Zenphoto developers will read:

http://www.techtangerine.com/2012/01/15/piwigo-and-zenphoto-a-comparative-review/

[Spoiler]I was not able to go with Zenphoto because I was focusing on Wordpress Integration. Nevertheless, I do look forward to using it for other activities.

Sincerely

H.

Interessting and neutral comparison review. To the main point that kept you using ZP: It is up to developer to provide WP or else support/plugins. WP is a great tool but we won't do any official work on that part ourselves. Actually we did indeed skip WP last year as we consider ZP a all-in-one CMS of its own (sure we are very much smaller than WP):
http://www.zenphoto.org/news/zenphoto.org-now-zenphoto-only

Btw, we are well aware of Piwigo bein a main "competitor"...:-) Maybe I will post about your review on our news section.