I've got two of these Lapdocks, I bought them for $50 back when they first started being liquidated. I currently use one as the display for a BeagleBone Black

I've got two of these Lapdocks, I bought them for $50 back when they first started being liquidated. I currently use one as the display for a BeagleBone Black for some project I'm working on. This setup isn't really anything new, people were running this sort of thing a year ago, and there are lots of variations of it including embedding TV-HDMI-stick systems (like the RK3188) directly into the case hinge of the lapdock so you have something more like a standard laptop. In any case, I highly recommend picking up the lapdock if you can find one for a good price. I'm not sure I'd pay close to $100 for one, but for $50 they were a great deal. They make great displays for Linux ARM SoC projects. If you actually want an ARM based laptop for general purpose laptop stuff, the Samsung ARM Chromebook already mentioned in this thread is a better all-around solution for not much more money.