Jeb posted another teaser image, this one of a cooked chicken. While nothing was specified about it, there also appears to be a new mystery bar beneath the health track - what could it be?
Additionally - Notch appears to have been experimenting with map-height changes. He went on to say that while nothing definitive is planned, they are looking into possible map height restrictions in the future.
Finally - a new launcher is being tested! You can help test it here. Bear in mind, it is only launching Minecraft for the moment, but the stress-testing of the launcher will provide helpful data for Mojang, to further improve it!
No, that's an experience bar. An experience system and experience orbs are confirmed already. Also, this screenshot was taken in what is perceived as the upcoming "hardcore" difficulty, which will include a hunger and possibly thirst meter.
i love how i was in the end part of making a thread about the hunger bar in the photos the second notch posted that pic so everyone would see the hunger bar just to find out this was on the front page. so much for a timely reaction <_< oh well i'm loving 1.8 so far!