Allthough the themes are excellent and has a very visual look (with a lot of pictures). It would be nice to see a dedicated photoblog theme from Justins hand/brain. :-)
I would love to see a theme that's stripped down to a bare minimum
For inspiration:
http://www.picpress.mustardamus.com
http://www.wordpress.org/extend/themes/monotone
http://www.elegantthemes.com/preview/eGallery