You can actually do it as a Custom View Tile or a List Tile to do this. I actually provided the code for an example we did during one of our Developer Days events: Event Recap: Jive Developer Days — European Edition
In that scenario, we used YQL to parse the info to a custom view tile. You can do something similar with just a list tile.
Thanks for this. Unfortunately, i'm not a developer so I wasn't able to follow what the instructions specified in that tagged blog. Do you have a comprehensive but less technical steps on how to do this please? This is the only thing for now that's keeping me from using activity pages and tiles as I need to show feeds from different places.