Experience Orb

Experience Orb is a new item that will appear in Beta 1.8. These small green orbs will drop when a mob is killed. Once these orbs are collected, they are added to the Experience Bar. Notch officially showcased it live at the PAX event in Seattle. The experience bar has been showcased many weeks earlier. While demonstrated at PAX, it appears the orbs will drift toward the player of their own accord.

Notch has told us about the revamped fighting system, and this is a product of this change. He has added new features to the bows, and improved the gameplay with these new orbs.