An 'almost' official list of Pokemon names has been leaked, then IGN (and the official Black/White website) essentially confirmed them by releasing a bunch of names that all fitted perfectly with the leaked list:
pokebeach.com/2011/01/potential-english-black-and-white-pokemon-namesimg24.imageshack.us/img24/9885/blackwhiteenglishnames.jpgFor the record, the names that have been officially released are Cofagrigus, Drilbur, Braviary, Axew, Reuniclus, Gothitelle, Woobat, Patrat, Musharna, Gigalith, Darmanitan, Klink, Minccino, Blitzle, Sandile, Pidove, Munna, Zoroark, Zorua, Oshawott, Tepig, Snivy, Zekrom, Reshiram, Pansage, Pansear and Panpour.
Edit: Three more names have been released in the Official Nintendo Magazine UK; Excadrill, Alomomola, and Sewaddle. All three of these match the earlier leaked list.
Second Edit: Three more names have been released by IGN; Deerling, Basculin and Watchog. All three of these also match the earlier leaked list.
Third Edit: Three more names have been released by the Official Nintendo Magazine UK; Lillipup, Tympole and Timburr. All three of these again also match the earlier leaked list.
Fourth Edit: More official names have been released; Darumaka, Purrloin, Audino, Cincinno, Emolga, Galvantula, Haxorus, Fraxure, Sawsbuck, Herdier, Liepard, Sawk, and Yamask. All of which, again, match the earlier leaked list.