As can be seen in the above screen capture Joost just added Thumbnails of Programs and Links to social bookmarking sites.
Small change but a welcomed one.
Update:
Joost apparently backed out of the change. Will try to get more details on it.
Update 2:
OK, I got the official word. This is a scheduled update rolling out today. So it might be hit and miss for a few hours. Also note that Joost are using a new domain name to publish the Thumbnails: http://j00.st