I like taking pictures and shooting videos.
BTW if you think about it, Features rule the consumer, prosumer, and entry level professional market. Which is why most High end DSLR's do not have an articulating view finder, its because even though the view finder on something like a t3i or 60D may be tough, it is still more solid and lighter without one. I see a professional photgrapher actually enjoying this camera very much, a consumer being confused with added manual controls, and prosumers having a love hate relationship with it. That being said, the people not using this as a side camera or travel camera making use of its added portabilty may be upset, because it would their only camera. If you need just one camera with articulating screen the SX50 is out and the t3i body is about the same price as this. So there a million options from canon. This fills a niche, and it does so very solidly with no real draw backs when it comes to image quality, a good camera for its size and price range.
If you need a articulating screen, Canon has them, t4i, G12 and G1x. If you think about it, canon first unveiled the Digic 5 on the s100 then added to the existing line. Im sure Canon wants to advance the G series line up, with every model moving down a notch because of the G1x. I do think the G1X was the original successor to the G12 but met much controversy over it. The G15 to me is like a Frankenstein between a G12 and S100, and being mobile being a key point due to the overwhelming sighs from bulkyness of the G1X. So yes I think all that you may be hoping for will be on the G2X. But this camera is solid and less then a lot of camera lenses. You can basically think of it like a lens, just being another great tool for getting amazing images in certain situations. If you notice the Nikon shines in the blacks but the rest of the range it loses detail, The can G15 is very slightly less clear towards the end of the black range, but shines over the competition in the rest of its range.
This Camera looks great! It sounds like when the 5D Mark iii came out and everyone was complaining about the light leakage thing and then found out that its only when the lens cap is on, and then everybody forgot about it and loved the camera. Especially after realizing that if u put a sharpen filter in post for video the footage from the 5d Mark iii it explodes with detail, something you really couldn't do with previous models, because they didn't have the all i frame and anti aliasing capabilities. This camera has some wonderful features and I expect when it does come out and people get the hang of it they will probably be very satisfied with the lack of noise and moire in video and the image quality in photos. This camera is fine without a head phone jack for most filmakers because most serious film makers have at least a small crew (or at least another person) and record audio to separate devices. If you are a professional photographer, a 7D is still a wonderful cam for that.
Intra65: This is a great camera for both video and photography. Yes I know its lacking AF points but look if you want a camera for fast shooting this isn't for you, get a 7D and stop complaining. As videographer this is a great camera and even better than Nikon D600. This camera has a new Intra and Inter frame video compressiion (all-i and IBP) with higher bit-rate compared to Nikon D600 with AVCHD B-Frame which is the reason behind Nikon having uncompressed HDMI out. If you don't know what I'm talking about go research it. Look it's all about preferences and 6D is more appealing to me than Nikon D600 or even 5Dmk2. FYI Nikon D600 has crazy Moire and Aliasing pattern which to me is useless for semi professional video and you can't change the aperture in live view mode.
I totally agree with you from a cinematography standpoint. Im not even at all concerned with the lack of headphone jack because usually filming I use an external device and have a sound guy who is listening. You can mount a rode mic on the hot shoe and use cam audio to sync with the actual audio. I think those who want a photography camera maybe should buy a 7D if they need more features for that. This fills a niche though, those who basically are looking for some awesome image quality and reasonable price. Also if this had all the features of the 5D Mark iii it would just be a 5D Mark iii! lol. Its a stripped down version so they can adjust the price, allowing for those who don't specifically shoot fast moving objects or sports, and possibly more aimed at film makers. This would be awesome for a studio artist/Landscape photography/Event photographer or a film maker.