Yesterday, Barnes & Noble unveiled their new eReader, the Nook. The sleek new model is the latest in a series of new eReaders popping up recently to compete with Amazon's Kindle. Kindle has long held the market on eReaders, but that might not last much longer. On Monday, Spring Design unveiled Alex, the first Google Android-based eReader, and Plastic Logic also announced recently the name of its new eReader, the Que.