Native Protection & Mono by Nihilus

another interesting tutorial from Nihilus. here's the description from the guide:

this tutorial covers a basic understanding of the Mono/Xamarin for Android, specifically how C#/.NET is used lately to protect games and, who knows, even malwares.

here's the link: https://mega.co.nz/#!jpwkTY4J!eXzXCngQAPlUjVvJtiSzEbSxqEv8EbYmMqaLTFxF01Q (updated 5/21/2015)

  i was not aware of this ability to run mono code on android and found it interesting.

related to this, wine is on the way for android. this could get interesting.
http://wiki.winehq.org/FOSDEM2014?action=AttachFile&do=get&target=wine-on-android-fosdem-2014.pdf

zerdei's luyten, a worthwhile jd-gui alternative

if you use dex2jar + jd-gui and you find the results less than satisfying, that's normal. jd-gui hasn't been updated in at least 100 years. methods often fail to compile and blocks of code are sometimes omitted.

luyten, by deathmarine, which you can get here: https://github.com/deathmarine/Luyten/releases is a front end for procyon, a java decompiler. procyon+luyten has a higher success rate for decompiling methods in my experience, and has higher fidelity output, though it's more verbose. the UI isn't that great, but this pull request by zerdei includes several noteworthy improvements: https://github.com/deathmarine/Luyten/pull/13

feel free to clone and build the jar yourself, but if you're lazy, and somewhat trusting, i built this for you!
https://mega.co.nz/#!K95RlRiB!ak2DWRxC2DgPYDic0eDpQibAuGtIoFZGtU67GzyjEjM