Trying to put it in concise list, TFA is bit too verbose. Short version - it is a real DK1 killer, too bad DK2 is already out there...
Comparing to DK2 (prototype versus prototype, so don't jump with 'it will get fixed in final version'):
- horizontal FOV 90 deg (instead of 100)
? no data about vertical FOV
+ better perceived pixel density (because of lower FOV)
- blurry, high-persistence LED screen
- 60Hz instead of 75 Hz (but high-persistence anyway is a killer here)
- no mention of any advanced techniques like time warp
+ headband with tracking leds, which allows proper tracking even when you look behind
+ reported to be more friendly for people with prescription glasses
+ considerably better looking
+ headphones included
- with jack input INSIDE the visor !
= PS4 versus PC
? no exact data regarding tracking quality, seems to be lacking magnetometer compared to DK2, not sure if it makes a difference
+ utilizing PS Move and PS controllers fully, has some concept for VR interaction besides 'up to game designers'
If Oculus will 'borrow' idea of tracking headband and Morpheus will get low-persistence OLED display, we will have very close match here for consumer version...