I'm running a family wordpress blog: http://www.kjirstiandtom.com
We have a lot of pictures we put up for family. I'm using the twenty-eleven theme, which I love. I did minor css edits to change colors and fonts, but it's otherwise pretty much stock.
Resizing works great... until you get really skinny (e.g. iphone screen). if you resize the browser window, you see that the pictures width starts to resize, but the picture height does not. Any tips?