I've been hard at work on power level overwhelming v2 since Blizzard Fixed the crashing to desktop with my map in a recent patch. I've been working the last month or two on it and I've got a brand new UI. The new UI features a 'quick command card' which is context-sensitive based on the current player's state (power beam, airborne). There is also a new health bar and ability casting bar. It looks way better in motion but here are some screens.
Power Beam, which is now controlled by moving the mouse.
Airborne, players can now easily left click to land.
New Cast Bar Shows Progress of ability use (lower right)
Improved Cleaner Skill Selection
You'll notice that the UI is colored based on the team, and the player is currently on the blue team.