Just a week after the Sony and Borders became eBook buddies, Barnes and Noble have just jumped aboard the eReader bandwagon. The bookstore confirmed its push into eBooks, announcing a partnership with Plastic Logic to develop an eReader for early 2010. The online bookstore will be 700,000 books strong, and it will even sell eBooks for other mobile devices, including iPhones and BlackBerrys as well as PCs and Macs. But the big question now – which eReader is going to hit the region first? Any guesses?