According to Pokebeach, Toys ‘R’ Us will be giving away a free starter pack for every Pokemon Black and White Purchase on March 6th.
This is good, considering it will refresh player’s stylus collection and will supply two new cases for your Pokemon Black and White games.
No word yet if multiple purchases will award you multiple packs, however, separately it will be 11.99$

UPDATE: There are some extra bonuses available, information available from PokeBeach!