Read Link Later Works With New Twitter
Version 1.1.0 of Read Link Later now works with New Twitter. Rejoice!
Sorry for the delay. New Twitter came to me at a bad time, where I didn't have the time to devote to updating Read Link Later. Fortunately, we're in business now!
The only issue is that the New Twitter uses their own API through JavaScript, so I don't have a way of knowing when a tweet is loaded. To work around this, I look for new tweets to add the Read Later links to every 100 ms. If I could hack in a custom event, that would be something.