I've been using DSLR Controller (BETA) to tether control with live view my 6D from my Samsung Galaxy S4.https://play.google.com/store/apps/details?id=eu.chainfire.dslrcontroller
Visit the app's web site at http://dslrcontroller.com/
, be sure to browse at least the “Devices” page. The FAQ and HowTo pages are quite thorough.
The support forum is rather difficult, a single thread over 300 pages long at.....http://forum.xda-developers.com/showthread.php?t=1202082
good luck searching that.
I've found WiFi laggy and undependable enough that I've switched to a wired connection using an USB Host/OTG cable which is stone simple, plug and play. I'm blaming the 6D's WiFi issues on Canon as I've had the same buggy behavior with three completely different phones, the DSLR Controller support forum seems to agree. No matter that WiFi is buggy, wired is rock solid and delightful to use.
Now I'm wanting a larger display, so this is on my shopping list......http://www.bhphotovideo.com/c/product/994108-REG/asus_me302c_b1_bl_10_1_touch_me302c_2g_32g_android_4_2_black.html
including it's Multi-Touch 1920 x 1200 10.1" IPS Display. There's a 16GB version available for less. Wishing there was an all black version, the blue version is dark blue and will do.
It's relatively large size is immaterial to me, it's just a skosh larger than my datacolor SpyderCheckr, both can be carried together.
I've yet to try DSLR Controller with the ASUS though I expect it should work as most all Android devices support the USB Host/OTG protocols. (OTG = On The Go)
There is at least one, higher resolution display Android tablet available, the Nexus 10 with 2560-by-1600 resolution. I forget exactly why I decided against that one, but I'm (for now) settled on the Asus.
Another app I'm looking forward to trying is Photo Mate R2,https://play.google.com/store/apps/details?id=com.tssystems.photomate2
for mobile editing, though I'm skeptical, I seriously doubt it can compare to my desktop PC with LR, DPP, PSE and GIMP.
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So for le$$ than a Flashpoint 7", you can have a larger, higher resolution full tablet with live view, an amazing level of tethered control and all the other abilities of a WiFi tablet.
You will still need to find, choose and purchase or fabricate a stand and/or bracket if desired to suit your style and tastes, some means to transport the set. .