In the US, Barnes & Noble and the Nook range of eReaders are well-known. But here in the UK, neither name holds much weight. Like Hershey's chocolate, they're around, but haven't yet woven themselves into the cultural fabric of the country. However, the Barnes & Noble Nook HD is no limping entry to the tablet game. With a high-resolution 7-inch screen, dual-core 1.5GHz processor, aggressive £159 starting price and expandable memory, it wants to lure people away from the Amazon Kindle Fire HD and Google Nexus 7. And for at least a handful of people, it should do.