Here's something pretty interesting that reader Nathan Smith shares for an external HDMI Monitor. The Motorola Lapdock is used to connect to Android phones via HDMI and provides a keyboard, larger screen, two USB ports, and more. The Lapdock also has an internal battery that claims an 8 hour life span. Well the Lapdock never really took off as a product, and now you can find them on clearance or at discounted prices. Nathan was lucky enough to grab one for around $59 dollars. So what does this have to do with DSLR Video and cameras?
There were a few forums that claimed the Lapdock will perform as a normal HDMI screen with the right adapters and some videos have shown it being used with a Playstation. If you're wondering, the Lapdock has a Micro Male HDMI connection, so you'll need a female Micro HDMI to start with. Here Nathan proves that with the right cables, you can even use it to display the HDMI signal from your camera. Can't beat that for $59 bucks.
I also found this interesting because the Lapdock provides two USB ports. The Lapdock with it's internal rechargeable battery can be a remote monitor receiving the HD video feed and power the Asus through dual USB power without extra batteries (theory). I've updated the comments in this article with some information about the adapter and cable you'll probably need. Anyways, it's a neat idea and could be a fun thing to have with the clearance prices, but the only thing i'm still unsure of is the exact model that Nathan is using. [Update] He's using the Atrix 4G Lapdock and you can find the Lapdocks online via Amazon (click here)
AT&T Laptop Dock SmartPhone