This is a great move for Feedbin. Rather than following a single collection of accounts, I can now subscribe to a core collection of users, lists and perhaps even some individual accounts.
You can start adding Twitter content to Feedbin the same way you would subscribe to a feed. Feedbin will recognize any Twitter URL that contains tweets. It also supports shortcuts for subscribing directly to twitter @usernames as well as #hashtags.
Best of all though is that I can read these tweets alongside my existing RSS subscriptions.