Heads-up, iPad owners (or to-be owners, as it were) -- the same devices you currently use to juice up your iPod touch or iPhone may not work on your fancy new tablet. Consumer Reports, TUAW and our own Chris Ziegler have confirmed that their powered USB hubs wouldn't charge the iPad, and we're even seeing reports that some Wintel rigs won't either. The only sure bets right now are Apple computers and your nearby AC outlet, leaving iPad owners with fewer options when it comes to topping off that battery when away from your abode. We're pretty certain this all boils down to the iPad requiring more power than most
