Lenovo has released what it claims to be the world's smallest desktop PC. We're not sure we can really confirm such bravado, but the IdeaCentre Q180 certainly is pretty tiny — especially if you split it in half to remove the optical drive. It can be placed vertically or horizontally, with a sleek chassis of only 155 x 192 x 22mm — not much larger than a DVD case. 

Of course, you're not going to be playing Battlefield 3 on a rig like this, but the machine does look like it'd make a decent HTPC. Inside, there's a 2.13GHz Atom processor with up to 4GB of RAM and your choice of a 500GB HDD or 128GB SSD. If you need something more, Lenovo provides options for a Radeon HD 6450A 512MB discrete graphics card, Blu-ray drive, and 750GB hard disk space — not a bad way to make optimal use of its HDMI and 7.1 surround sound output. The Q180 starts shipping at the beginning of December, and prices begin at $349 online.