Thought I'd share this, long time lurker first time poster
I got myself a Lapdock 500, and I do plan on adding normal HDMI and USB connections for use with a SFF gaming rig, so I disassembled my unit and took these pictures- Enjoy!
Looks like that HDMI/USB connection is a pain. The LCD and USB for the webcam share a standard connection type. There is one unused 8-pin header, maybe for another battery? There is PLENTY of room in that system for addons! Or maybe an internal 19v power pack... That's probobly going to be my goal.
Also, ungh: I have not made 8 posts yet.