In SC1, all abilities that don't require a target can be cast through the minimap. I'm assuming that this use of the minimap as a target area designation interface still holds true for SC2. But I want to ask specifically: Does this hold true for Proton Charge?

I am asking this because it will make a huge difference in macro-oriented gameplay. If it is true, then that means the Protoss will have the easiest macro, because, while Terrans and Zerg have to return to base to cast MULE and Spawn Larvae, the Protoss will simply have to select the right group of Obelisks and cast PC on the minimap.

---

Q u o t e:
In SC1, all abilities that don't require a target can be cast through the minimap. I'm assuming that this use of the minimap as a target area designation interface still holds true for SC2. But I want to ask specifically: Does this hold true for Proton Charge?

---

Yup, you will be able to use the mini-map to cast the ability.

While this may make it easier in compared to the other 2 races, warping-in with the highest efficiency is much more difficult than having queued units of Terrans with reactors or Zerg with their many extra larvae and all units being built from hatcheries.

They are different yet will be balanced :)