That's not what it says though. It's your right to read anything into the text you want, I just don't see it.Here how I read it: Unarmed Combatant is a class feature that allow to use your unarmed strike as a monk unarmed strike. In other words, it doesn't give you proficiency into monk unarmed strike, it transform your unarmed strike into a monk unarmed strike.
It wouldn't surprise me either. I was just saying as it stands, IMO, it's a valid weapon to gain proficiency in it you are using preview material.I wouldn't be surprised if there are indeed some restrictions to who can use the monk's strike to full effect.
Where does it say that? That's like saying I can only use heavy blades as implements if I'm a swordmage. However my warlock can take the feat arcane implement proficiency to add them to her list of implements.It doesn't matter if you chop off your hand for the battlefist, what matters is you take the Paragon Path. It doesn't matter if the monk strike is a weapon, it matters that you take the Class.
By the way, TheRoc, you should look at A Paid Trip to Spellhold OOC and IC thread.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.