TagFacts

Cool is the time between the ending of the attack and the beginning of another.
Cool is the time between the ending of the attack and the beginning of another.

My personal favorite unit, the Zealot, is making its second debut in StarCraft 2. All of the features of the zealot seem to be in tact - it is still the heaviest, most powerful, yet most expensive base unit of all the races.

Aside from a few nifty little gameplay videos, there have also been two seemingly complete tech trees released at Blizzcon - Protoss and Terran. There are a few new buildings.