In case you missed them, here are the latest applications with Read It Later support.
For a full list of all supported apps see the Read It Later App Directory.
Browser Apps
Postponer - Chrome Extension
Simple Read It Later extension for Google Chrome.
Mobile Apps
AddToReadingList - Blackberry App
Addtoreadinglist is a Blackberry browser integrated client for the ReadItLater service.
Bulletin - Android App
Google Reader and news client for your Android phone.
iPhone Apps
ReadWriteWeb
Official app from ReadWriteWeb
Tweetings
Twitter app
Push News
Breaking news updates delivered via push
RSS-Flash-G
Fully featured Google Reader client