As more tablets are released, manufacturers need to continually come up with good reasons for …

Amazon is planning to take on Siri with a rival voice service. The bookseller and maker of the Kindle ebook reader has bought voice assistant Yap, potentially helping the Kindle Fire Android tablet challenge the iPhone 4S and iPad. Siri is the personal assistant in Apple’s new iPhone 4S, answering questions you pose by speaking into the phone. Yap, on …

Though it’s not the only portable projector on the market, Brookstone’s Pocket Projector for iPhone 4 seems to be one of the more elegant options for portable large-format viewing. The slide-on docking case includes the projector unit, which makes setting up a presentation or video-viewing session quite easy when you’re on the go. The 15-lumen LED lamp will give you …