Take a look at the pictures above and you can play a thrilling game of spot the difference. Is it the integrated Wacom graphics tablet lurking to the right of the trackpad? No, sorry, they both have one of those, try again. Is it the integrated X-Rite Pantone colour calibration sensor for discerning design professionals? No, you’re getting a teeny bit warmer though.

Ok, so the eagle-eyed amongst you may have spotted that one of the laptops is at a slightly different angle, but there’s something more, something novel and mysterious hidden in the lid of the W700DS. 

The W700DS actually sports a secondary display which shimmies out from its right-hand side. Measuring 10.6 inches across, we presume it’ll be furnished with a netbook-alike native resolution of 1,024 x 600 pixels or thereabouts – just enough for stowing away your Outlook inbox and all those pesky menus and palettes which would otherwise clog up the lovely full-HD 17 inch display to its left. It’s a pretty zany addition to a laptop, we’ll grant you that, but we think it might just catch on. After all, while you might be able to cart around a hefty desktop replacement – Lenovo claim that the non-DS W700 weighs a relatively modest 3.83kg – we doubt many professionals could be bothered to, or even capable of slinging a 17in TFT in their bag.

And, whether you think that secondary display is a stroke of genius or a sheer flight of fancy, the W700DS’ allure certainly isn’t damaged by any qualms about its core specification. With the top of the range model boasting an Intel Core 2 Quad processor barrelling along at 2.53GHz, up to 4GB of DDR3 memory and the latest Nvidia Quadro FX graphics chipset, there’s little for which the W700DS will be found wanting. Except, that is, its price. With the range-topping W700 coming in at a breathtaking £2,649, and that’s excluding the VAT, we dread to think how extravagantly priced its twin-headed cousin will be. Rest assured, though, we’ll be badgering Lenovo mercilessly until they give us our very own W700DS to play with.