I've never really understood Still photographer's aversion to a flip LCD screen. To me, even if I only shot stills, I would still want a flip screen because it allows so much flexibility.
As a video guy who has a 60d, I hardly ever use the Flip Screen. I have a Z-Finder attached, but there are times when I just un-do the gorilla plate bolts (takes 10 seconds), and flip out the screen for those odd angles.
Even if you only use it occasionally, the flip screen is much nicer than having the screen locked off. Cannot see any advantage to a locked LCD functionality wise. Some say a flip screen weakens the body, but the only way to test that is if you drop the camera, and flip screen or not, the camera probably will be F#@$ED.
As someone who cares very little for video I'll chime in. I use my cameras in all kinds of conditions and they get treated quite harshly at times. One of the main concerns is the impact that a swivel lcd will have on weather sealing, to me it's just another part to get broken resulting in a costly repair or another place for water to get in if I'm shooting in challenging conditions. So my main concern is the integrity of the body itself, maybe Canon has worked this out, maybe not. The long term durability of swivel LCDs has yet to be determined.
Also I have a dedicated video camera and I can't help but feel that even though video adds very little to the cost of a DSLR, that money could be better spent on improved weather sealing, and or more features. Until af performance rivals a traditional video camera, DSLR video is something I'll probably never use, but a 5DIII with improved af and dynamic range along with top notch weather sealing is something I would use every single day....