[Kindle Fire HDX 7" & 8.9" General] randallhb:
I rooted it and converted it into a full android tablet :D, I followed these steps:

* enable ADB & install apps from unknown locations

* install 1mobile market

http://market.1mobile.com

* install supersu from 1mobile market

* install towelroot

http://www.towelroot.com

* root with towelroot

* run supersu, update binaries

* reboot

* install safestrap

http://xdaforums.com/showthread.php?t=2556677 => thor/7 safestrap thread, please use the correct version as stated there

http://xdaforums.com/showthread.php?t=2612772 => apollo/8.9 safestrap thread, please use the correct version as stated there

* configure safestrap into system

* reboot into safestrap => be extra-careful here!!!

* backup stock rom

(here you can: create a new rom slot, restore the stock backup, and set it to boot)

* reboot

* copy backup of stock rom to computer

* install xposed

http://repo.xposed.info/module/de.robv.android.xposed.installer => I used the 2.6.1 stable version, I disabled automatic downloads in xposed

* install hdxsposed

http://xdaforums.com/showthread.php?t=2618158

* configure xposed into system

* enable hdxsposed

* reboot

* install google account manager, google services framework, google play services, google play store

http://xdaforums.com/showthread.php?t=2787813 => here are the APKs

* reboot

* run google play store and configure account

* disable ota using the HDX ToolKit

http://xdaforums.com/showthread.php?t=2665683 => toolkit thread

Some cool apps I found reading these forums:

* GMD Auto Hide Soft Keys (I bought it): it replaces the stock navigation bar (soft keys) with a configurable auto-hiding navigation bar, allowing the use of the whole screen. I set it up with the Android L theme and these buttons: Vol-, Vol+, Back/Previous, Home/Google, Task list/Close all tasks, Menu, Power

* GMD Gesture Controls (I bought it): I used gestures to replace the navigation bar. Now I only use the navigation bar when GMD-GC for some reason is not enabled at boot (see problem below)

* Power Toggles: has a toggle to disable the lock screen

Other good apps I installed:

* Backgrounds HD Wallpapers

* BetterBatteryStats

* BootManager: disable startup apps

* ES File Explorer & Helium Premium: it allowed me to backup apps from my Nexus 5 and send them via wifi to the Kindle

* Greenify

* GravityBox: I enabled "Clear all recent tasks" in "Miscellaneous tweaks"

Some problems I had:

* Kindle stock launcher did not show all apps, the solution was to changelanguage from "Español - Latinoamérica" to "Español - Estados Unidos"

* GMD-GC did not work at first, I had to enable the override multitouch device detection in advanced device setup with : synaptics_dsx_i2c & ICS_DEFAULT, then Restart Service. After some reboots I have to try this several times until it works.

* GMD-AHSK takes away the menu button in some apps. I think this is a bug that the developer is solving. I created a gesture in GMD-GC for the menu button

* Swiftkey keyboard: it was overlaps the stock navigation bar when in landscape, also sometimes in portrait it would not show up complete. Both problems solved since I installed GMD-AHSK

I hope this helps someone. Thanks to all that made this possible.

Regards