Kobo unveils limited edition Aura HD e-reader: 6.8-inch HD screen, ships April 25th for $169 (hands-on)

Late last year, Kobo went small. The introduction of the 5-inch Mini was no doubt, at least in part, an attempt to offer up a bit of variety in a space whose parameters are largely defined by two Goliaths: Amazon and Barnes & Noble. The device offered a compelling alternative, but ultimately not one enticing enough to recommend it. Announced at roughly the same time, the company's first take at front-lighting technology, the Glo, suffered a similar fate, coming on the heels of the Kindle Paperwh...