How can I get the likes feed of people I follow via an api like the one found in tweetdeck?

These likes are being called from api.twitter.com/1.1/activity/by_friends.json which we are currently not allowed access to.
Could this be available as an option in Account Activity API (beta) similar to the favorite_events Account Activity Data Objects? Maybe something like following_favorite_events?
If not, I personally think this would make a great addition to the Account Activity API. What is the preferred channel for submitting feature requests?
Thanks,
Alex