Projects I'm thinking of doing

I'm mulling over several repetitive actions or web fallacies that might make nice side projects. Without actually looking around and seeing if any of these are already in existence, these would be fun to hack out. Among these:

• A web service that scrapes article/blog content and formats it for formal printing
• A Firefox add-on thesaurus
• A Guam mapping mashup of some sort
• A podcatcher for Windows smartphones
• A freeware RSS reader for Blackberries
  

All of these would be open source. Can you think of any more? I always enjoy working with other talented, mature programmers on such work, so get in touch with me offline and let's talk about it.