might be the koreans who are used to play starcraft i heard from a friend that they can make like 400 UA/sec vs average players 50 UA/sec
Hehe, as Darvin points out, it is per minute, and even that seems kind of fast. I have seen video of Korean players in tournament, and the guys hand was epilectic on the the hotkeys he was tapping them so fast. I can't compete with that, though I can't help but wonder how useful it is to button spam when things in the game only happen so fast.
That said, this is one of the reasons I like Sins and I don't know how excited I am by Starcraft II Multiplayer. My poor hands can not handle the button mash fest super hi twitch / hi user action games require. Sins with Alloy speed boost almost runs too fast for me...I'm not as young as I used to be, and I don't need carpal tunnel. Sins has a good pace and requires smart strategy as much as it requires micro.
Hopefully Starcraft II won't be all about the button mashing....