I learned that the WordPress app quick photo poster for iPhone works reasonable well. I also learned that you need to be careful which blog you select. This was originally intended for my class blog. Since the picture was blurry and I figured I could make a post out of it I decided to leave it.
It takes about 30 seconds to just take a picture and upload it with a title. It would take a little longer with an explanation. The cancel button being near the title bar may end up being frustrating at some point were I to use this more regularly in class.