Both activities are designed to make use of content that you, or others, have uploaded to YouTube or Flickr, and they both work in a very similar manner. You can show content based on user Id’s or construct your own feed URL if you want to does something a bit different or more advanced.
And we’re not stopping there. We’re hard at work on more activities and more features for your Andromo apps. I’ll try to post a screen shot when our next activity is further along.