WebOS Arena (jeez, that didn't take long) is reporting that the Palm Pre will be exclusive to Best Buy Mobile (and Sprint stores, obviously) for its first two months, citing a "credible source".
This wouldn't be totally surprising, as Sprint has previously given Best Buy such privileges, most notably in the case of the Samsung Instinct. For a short time, Best Buy was also the only place outside of an Apple Store where a customer could purchase an iPhone—news that seemed to point to Best Buy as the de facto king of meatspace mobile shopping. In other words, "credible" source or not, this course of events is a good bet. Note: WebOS Arena, though brand new, is a subsidiary of the long-established PhoneArena. [Source, image at WebOS Arena]