Linux can runs on android now, which means the android is more and more powerfull. Here is the introduction: http://www.linux-magazine.com/Online/Features/Convert-an-Android-Device-to-Linux

On the other hand, we can simulate android devices on Linux platform: 5 Best Android Emulators for Linux

Running the Android emulator from the Google official docs: Using the Emulator

There are also terminals on Android: Best Terminal Emulators for Android

For Huawei Device, this is the update ROM extractor: http://forum.xda-developers.com/showthread.php?t=2433454

The Truth is: Android is branch of Linux, maybe the most import branch nowdays. It runs on most of the inteligence life devices, phone just the first step, cars, bots, etc will coming soon.

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Kindle

Kindleberry Wireless: A Portable Outdoor Hackstation: http://maxogden.com/kindleberry-wireless.html

KindleBerry Pi: http://www.ponnuki.net/2012/09/kindleberry-pi/

Kindle Touch Hacking: http://wiki.mobileread.com/wiki/Kindle_Touch_Hacking#CURRENT_UNIVERSAL_METHOD

Kindle Touch/PaperWhite 5.0.x - 5.4.4.2 JailBreak. Plus K5/PW USBNetwork. http://www.mobileread.com/forums/showthread.php?t=186645

Font, ScreenSaver & USBNetwork Hacks for Kindle 2.x, 3.x & 4.x http://www.mobileread.com/forums/showthread.php?t=88004

MobileRead Package Installer http://www.mobileread.com/forums/showthread.php?t=251143