My Xoom came in the other day..and is pretty fun.
I'm going to likely root it this weekend to make it even more accessible.
I have a special cable I got and will experiment with hooking it to camera this weekend...but I've also been thinking heavily about how to do the HDMI out of the 5D3 (when the firmware comes out later this year)...and transmitting wirelessly to my tablet possibly...as an external monitor so I could see myself when filming my cooking show one man band style.
I found this video:http://nofilmschool.com/2012/11/abelcine-wireless-video-solution/
And it is something along the lines I'm thinking of. This one has HDMI to something called SDI converter boxes hooked on, overkill for my needs...but the 'geffen' box sounds interesting.
I'm also thinking that this kind of wireless set up might be very convenient going straight to a video recorder ...maybe could send same signal to both the tablet "monitor" and the external video recorder.
I'm gonna research the wireless video transmission thing...and maybe experiment with it...but if it would work, sure would make for some interesting ways to monitor and record from the Canon 5D3 and other dslrs....and possibly be affordable for the DIY'er and low budget guys like myself.