So, I decided to use my MobileMe Gallery feature. I have never used this before, and it seems to be easy enough! Steps thus far:
- Create a new gallery in MobileMe.
- Copy the RSS feed that is generated.
- Sign up for an RSS2Twitter account for auto-posting of the new item each day.
- Here is a screenshot of the things I typed in to try to get the hashtag for Twitter to show up, too.