^^
On the issue of downgrading functionality -
For at least the last 3-4 yrs, many posters on this forum bitched about having a lot of legacy connections on the backs of their "modern" HDMI receivers. Some of the mfgs are now glad to respond, because it has the
ADDED benefit to THEM of reducing their own costs.
Now some are bitching because some previous connection or functionality is NOT there

. The saying "be careful what you wish for" seems appropriate!
Before you think I'm criticizing you, I'm 100% in your camp! 
For my needs, substituting geeky iPhone control & such for core functionality with ALL kinds of sources, modern & legacy, IS a step backwards.
Unless one truly has a burning desire to be an early adopter-guinea pig for 3D, to my eyes the SC-27
might be the better choice. It has more connectivity for use with more types of devices. If I had a 27 now, I'd keep it in a nano-second & wait for 3D to mature over next 2-3 yrs. Worth considering for some of you anyway

IMHO, in Pioneer's race to keep up with the Denon's & Onkyo's of the AV world, they've also managed to
provide a bit LESS for the same money -
not a bad thing when you're still losing many millions per yr as a company. They're probably thinking some of you won't notice since you'll now have that 3D capability that's hot now

Me? I want all the connections & functionality I can get....of all types. For my needs, the SC-37 wouldn't cut it. Hate to say that, 'cause I'm a big Pioneer fanboy.