I have three quick thoughts about the tactical combat UI.

1. We should let the player mouse over enemies and get an infocard about them.  I know screen space is valuable, but I think the system should help tell me what I'm seeing so I don't have to zoom in real close and check out if that guy's equipped with a spear or a sword etc.
2. If the terrain inside the tactical combat does anything (+25% defense, no first strikes when attacking into or out of, etc.) then the player needs to know this as well.  Preferably via mouseover - maybe even infocard terrain as well.  Is it possible to get two infocards at the same time? (player mouses over a square and gets the unit infocard and the terrain infocard).
3. Right now we leave it up to the player to figure out that right click moves his units.  I'd like to see buttons on the units toolbar for all posible moves: Attack, Defense, Move, Abilities, and tabs for Spells and Formations.