Fulfilling a basic need of mine, this app shows you recent activity on all your trello boards. It will automatically refresh once a minute and highlight new actions. You can get rid of highlights by refreshing manually.
I invested a little time in design and functionality, but it it still a very early alpha kind of application.
Newest features:
- Filtering lists is now possible via hash tag
- Cards can be clicked to get load trello.
- Flickering during reload is gone.
Feedback & change requests are welcome, but it's best if you just submit a pull request for things you'd like to see.
The site is running at: http://trelloactivity.apphb.com