Just discovered Photoblog today. A sensible approach to blogging sites now that everyone carries around digital cameras and camera phones. Their approach allows one post per day and up to twenty photographs (with captions) per post, and photos can also be emailed to one's blog (no MMS that I can see).
PulseWire is able to do something similar with file attachments, although we don't currently have a way to email photos to a blog. We do have SMS (text message) blog posting, however -- see MobileLink for more info.