In case many of you still wondering (and i am very sorry in case it has already been answered), i can confirm that DN2820FYKH can play 3d blu ray iso and also that the issue with 23.976hz indeed seems to be fixed after many tests i have done.
Setup : Windows 8.1 pro, 4GB Crucial ram model CT51264BF160BJ, kingston V300 60GB ssd, YAMAHA v371 amp and LG55LW650S tv. Tested 3 days ago so i used the latest GPU drivers from 20/2
For 3d tried with PowerDVD and tested with a 3d blu ray iso (40GB with average 31mbps rate).
For 3d to work you need latest GPU drivers (...) and the "3D" option to be checked in resolution panel.
In settings (in every program including PowerDVD) the Intel QuickSync has to be enabled for hardware decoding (Same for LAV splitter in MPC and everywhere).
After that the mounted 3d iso played without ANY problems in 3D (without HD audio though.. i think thats still an issue on windows 8.1)
Tested also SBS to 3d on PowerDVD with obviously similar great results.
WinDVD never worked (always got the message "media not supported") although the "Use Hardware Decode Acceleration - Intel Clear Video" was checked.
Stereoscopic player worked but with odd picture dimentions and average 3d (i used there for output the "Intel Stereo Driver")
MadVR also worked (someone asked me in another Greek forum to test) both in the output and filter in MPC and when fullscreen the playback was spottless. When in windowed mode i had some stuttering though.
On openelec (dual boot system) had also no problems with any file and HD audio was working properly although a few times i experienced some throw back in the main menu during either a playback or navigation on menus (an X mark in black screen and then something like quick "restart" of openelec).
To test the issue with 23.976, i used in Openelec a video file from a Greek forum after i disabled the de-judder and de-blur on my tv and everything worked like a charm.
I dont want to give false hopes since i dont know what would happen with a very high bitrate iso file (the only one i had and used has an average rate of only 31mbps), but at least i can confirm that this NUC (yes... the bay trail) has most probably the issue with 23.976 fixed and can output 3d for sure.
Ps. Please excuse my English.. :)