Hi there,
We released an integration package for Getstream.io API, which allows you to build scalable news feeds. At the moment we are looking for feedback on the package from you (the Meteor community), before we make it an official release. The package can be found on github: https://github.com/getstream/stream-meteor. I also created an example app to give an idea of what is possible with the package: https://github.com/GetStream/Stream-Example-Meteor. Please contact me if you decide to give the package a try and have any feedback for us.
Cheers!