The Korean Yonhap News agency is reporting that the the Galaxy S Android smartphone has sold over 300,000 units since its launch, less than three weeks ago.  That’s the fastest smartphone launch in Korean history.

Update: Samsung confirmed to me today that they’ve sold over a million Galaxy S phones globally during that period as well.

Compare that to iPhone sales which have been 800,000 total, (ever) and you are looking at a pretty solid launch for Samsung’s first real foray into high-end Android devices.

Can Samsung be as successful with Android in the U.S.?  They’ve certainly done the logistics legwork.  Samsung Galaxies will be available on all four major US carriers and even a minor, U.S. Cellular, at launch this month.

Reviews of the devices have been overwhelmingly positive.

The president of Samsung’s mobile business division, Shin Jong-kyun, said last month that the company aims to record 10 million in sales with its Galaxy S globally, a pretty tall order in the uber-competitive high end smartphone space.

To get that many phones out the door, Samsung is spreading the Android platform much further than it has previously gone. They plan to eventually release the Galaxy in 110 countries, which is much more than double Android’s May footprint of 48 countries.

As for the U.S., Verizon will have it as the Fascinate, T-Mobile as Vibrant, AT&T as the Captivate, U.S. Cellular as the Galaxy S and Sprint as Epic 4G all coming in the next month.

For those who can’t wait, GSM unlocked Galaxies are already turning up on eBay and Amazon with prices starting around $600.