If you're one of the people who considered it a little strange the S III launched without a black variant then you may not have to wait much longer for one to hit the market with UK retailer
Carphone Warehouse listing a black SKU alongside the current blue and white versions.

Samsung Galaxy S III Black SKU?
Enlarge Samsung have shown they aren't averse to releasing carrier specific specials, with
AT&T receiving an exclusive red version, so this could yet be an England-only special. However, we're hoping a black model hits general release sometime in the near future.
Keep an eye on Click for all the latest updates on the
Samsung Galaxy S III.