Not to be outdone by the likes of kiddie-tablet makers Fuhu or competitors like Samsung, Amazon is introducing its own tablet intended for kids. Starting at $149, the Kindle Fire HD Kids Edition is 6- or 7-inches of Amazon tablet goodness, which comes with a year of FreeTime Unlimited all-you-can-eat kids content and a 2-year worry-free guarantee. Preorders start now, and the two tablets should be on sale in October.