The idea for this just struck me as a response to the "unconscious heroes" idea.
INSPIRING WORD
Your rallying cry allows your ally to shrug off a blow, helping them regain their confidence and composure.
Encounter (Special) * Martial, Healing
Special: You can use this power twice per encounter, but only
once per round. At 16th level, you can use inspiring word
three times per encounter.
Immediate Reaction
Close burst 5 (10 at 11th level, 15 at 21st level)
Trigger: An ally within range takes damage
Effect: The target may spend a healing surge and regain an additional 1d6 hit points. The amount of additional hit points regained is 2d6 at 6th
level, 3d6 at 11th level, 4d6 at 16th level, 5d6 at 21st level,
and 6d6 at 26th level.
Special: You may use this power even if you have already taken an immediate action since your previous turn.
This solves the whole "morale boost an unconscious hero back on their feet!" dilemma by allowing the Warlord to shout their buddy back on their feet before ever even get unconscious. I wouldn't be sure how to adjudicate the "does the guy still fall prone first" issue; I would guess the answer would be yes.
This reinforces the idea that the Warlord isn't magically mending wounds after the fact but is instead keeping his ally's fighting spirits up, even in the face of pain and damage. It also adds another level of strategy to the Warlord (as if it needed it) by forcing the Warlord to make snap decisions on when to use their Inspiring Words. You don't get to wait until your turn to hem and haw over it; you need to do it right then and there, with the understanding that you don't get anymore immediate actions until your next turn. I did toss in that last Special line, because otherwise Warlords will never use their immediate action powers at all.
Curious what you guys think about it.
Lots of problems with this as already mentioned. In addition, it's an Immediate Reaction, so it would bring the prone unconscious PC back up, defeating the purpose of what you wrote. Additionally, this is still healing, so it is still healing. Temporary hit points would work, but real healing is real healing no matter how you slice it.