You know Palm's on to something when reputable sites start to splinter around its newly announced OS and handset. PhoneArena's fledgling sister site, WebOS Arena, has it from a "credible source" that Best Buy will be the exclusive retailer for the Palm Pre. That means that Best Buy will be the only place other than Sprint where you'll find the Pre for purchase on US soil for the first 60 days after launch (whenever that might be). Assuming the rumor is true of course. [Via PhoneArena]Filed under: Cellphones