I have a slightly better kext, it's 10.7.2 and it also features rear mic input. Hopefully someone will be able to add front mic that is the only thing I am missing at this moment (I only use 2.1 audio output so I cannot comment how the kext works with multichannel). I have attached kext and screenshots of inputs and outputs to this post.
Credit to cparm for creating the files (Info.plist, layout888.xml and Platforms.xml) that is being used for patching Applehda.kext.