Amazon’s brand new Kindle Fire HDX will be on the UK Amazon site sometime soon. Available in two sizes (7” and 8.9”), the online behemoth’s new reader-cum-tablet is substantially lighter than its predecessor (by about seven ounces) and even marginally less weighty than the iPad Mini. It also has a better screen than that on the iPad Mini. The new Kindle Fire HDX also comes with a Mayday feature that links directly to Kindle’s tech support. Having instant access to advice is a good thing for anyone flummoxed by the workings of the tablet but it also sounds an alarm that maybe the tablet is not quite intuitive enough in the first place. The jury is out.