I just wonder why Zacuto or somebody else can't come up with a viewfinder attachment that swivels up and down and rotates like a shoulder camera viewfinder. That would already help. This is basically what the EX3 viewfinder is, a LCD with an attachment. Normal optical viewfinders on still cameras have had 90 degrees viewfinder attachments for decades now. Not exactly the same but shows it's needed.
Just something like this, but that would fold out to become straight for shoulder shooting and would attached over the LCD: http://cgi.ebay.com/Angle-Viewfinde...in_0?hash=item518c04c55a&_trksid=p3286.c0.m14
I think Cinevate are developing something of this nature.