We’ve said before that releasing the Pre after WWDC, which takes place starting June 9th, would be a big mistake. Reinforcing a prior rumor that the Palm Pre would launch on June 7th is a new one, which states that Best Buy will have stock on June 8th.However, accoding to BGR, what Best Buy, Palm, and Sprint may call “stock” may be as few as one Pre per store, also known as “whoopee!”According to the report, Best Buy will be a limited set of Pre handsets for a “trial launch.”  There will be 4,500 units