Emulator

and where is the WiimoteEmu.cpp located? I searched through dolphin's files and source and didn't find it.

nvm found it , but I don't know how to compile it :S
https://code.google.com/p/dolphin-emu/source/browse/Source/Core/Core/Src/HW/WiimoteEmu/WiimoteEmu.cpp

We have instructions for that. https://code.google.com/p/dolphin-emu/wiki/Windows_Build

I'm building it right now, but why do we need DX SDK? it builds fine without it (VSU2012)

We don't want to update the Windows project files to VS2012 (which includes DX SDK) because that breaks XP support, IIRC.

I did update to VS2012 , since I'm a Windows 8 user , I had to get Windows 8 SDK , which keeps on giving me d3dx9.h not found. I got the DX SDK too , and I made sure the lib/include files are leading correctly. And it still didn't work :\

This isn't really the place to discuss this.

If you need help compiling dolphin, you can ask at http://forums.dolphin-emu.org/index.php or on irc, #dolphin-emu on freenode.

Hopefully it'll be implemented :D

I'd love to mark this accepted, but I'm pretty sure everyone else would kill me.

Well then you'd have to get acceptance from everyone else, which is a "no" :
I don't get it why wouldn't that be an option?

Would be possible to send battery status of Xinput controllers to Emulated Wiimote? Would be useful to get a nice battery warning status messages with mapped controllers :)