Bug - I got a window interfering with my UI, so I Alt+Tabbed thinking I might have hit the Windows key. But I hadn't, and, when I tabbed back in, the "Moho Log" (SP?) window was visible in my game. It then took a back seat to the rest of my UI, but, whenever I wanted to select any items or spells from my tree, it would interfere.
Balance - Rook seems incredibly easy
Gameplay seems very fast now. With the item costs going up, it hardly makes much sense to focus on items at all if a game can be over with so quickly. You don't have enough gold to purchase any significant upgrades for the longest time, and, by the time you are pounding on the enemy citadel, you've somehow made bank.
Voices - got way too cheesy on the character level, and the arena announcer now sounds like he came from the Unreal series
I do like the fact that the lower cap level will prevent you from being awesome at most every spell line and force you to a higher degree of specialization.
Lovin' beta.