I dont understand why someone would rather have a rear / downward facing speaker, the only positive is looks.
My smartphone is probably the device that I spend the most time touching and looking at per day (well maybe except my girlfriend ).
I think it just looks awful.
By the way looking at the "skip" thing, I stumbled over this slide:
this one misses the bottom front facing speaker, making it look much more akin to the Moto X. It even has the little microphone hole the Moto X has aswell.