Regarding the Lenovo IdeaCentre Horiwhogivesafuck: remember this parody from five years ago?
Of course Lenovo’s press release didn’t have any information about how much this behemoth weighs, so I dug around. CNet says that it’s 17.8 pounds. My Thunderbolt Display is, according to Apple, 23.5 pounds. They both use a 27-inch panel but, while my display has a glass front and aluminum back, the Lenovo doesn’t. On the other hand, it also has a full computer inside, plus a battery. That’s a huge weight reduction (but it’s still not light enough), so you’d expect the battery to be very, very tiny. And, indeed, it gets a measly two hours of portable use before you need to find a socket.