WotC feat that can increase armored movement?

[irdeggman]

What about the possibility of a character using Ironwood Plate Armor?

Warforged can't wear armor - their natural plating takes up the armor slot.

And since the OP was talking about a warforged with the adamantine plate feat - he has natural plating.

If he took the unarmored body feat he could wear armor but has no natural armor.