From Electronista:

Best Buy raised questions on Thanksgiving weekend after it suddenly started cancelling Blackberry PlayBook orders. Shoppers have frequently reported orders being dropped, even if the order had already been charged and was virtually ready. Those on Best Buy’s forums have mentioned the retailer being “overextended,” while our own checks had one store say that “all” orders had been cancelled.

[…]

While it’s potentially to discourage rain checks, the cancelled orders come just as Best Buy also appears to have pulled listings for the PlayBook itself, leaving only accessories[…]

If Best Buy is truly “overextended” with sales requests, why would they remove the PlayBook from their listings instead of showing it out of stock? Considering the PlayBook’s lackluster sales—partly due to its limiting software—I wouldn’t be surprised to find Best Buy and other retailers cutting their ties to the fledgling tablet.