The Blackmagic Design cameras are pretty awesome for what they are and how they've burst onto the video market, but for us Windows-based PC owners without a brand new Thunderbolt input device, they're useless. I don't even think that a stand-alone SSD reader exists, so that puts the kibosh on my interest. As if I have the cash-ola to spend anyways!
I'm a Windows-only user at the moment and have no problems working with my Blackmagic Design Cinema Camera (BMCC). You can read ProRes in Windows. BMD's DaVinci Resolve is on Windows. My BMCC uses exFat-formatted SSD drives. Thunderbolt is only used for monitoring and scopes while recording and is not necessary (or even used) for ingesting video from the camera.
All the praise of the BMCC and the anticipated new cameras that I'm reading here is well-deserved. My wife has a 5D Mark III for stills shooting. I borrowed it for video shooting quite a bit and was about ready to buy one until I started fancying a BMCC. I'm very glad I didn't buy another 5D Mark III. The BMCC is so far beyond a DSLR that I don't know if I'll ever pick up a DSLR for video again, especially after my BM Pocket Camera arrives.
As someone said earlier, ask a stills photog if they would ever give up raw. Once you have it in video, you won't want to either.
And, the 4:2:2 modes on the BMCC blow away my Canons in resolution and color.
I've ordered both new cameras, but will probably cancel the 4k. I really don't have a need for it. The Pocket cam will solve one issue that I don't like about the BMCC vs. a DSLR: the BMCC's form factor is not "handheld-friendly". Like Cayenne, I plan to buy one MFT lens (the Panny 12-35 with IS) and use the cam as a "walking around" cam. If an active-MFT to active-EF adapter comes out, all the better so I can use all my EF-mount glass.
A correction to something in this thread. The BMCC does suffer from moire. However, because it resolves so much detail, it is actually possible to reduce the effects of the moire and clean it up nicely, mostly through chroma blur. In doing so, the moire isn't bothersome to me on this camera, when it was something I just hated about some DSLRs.
There is a reason that BMD has stolen the show at NAB two years in a row. They're delivering what people want.
The next traditional companies that need to start worrying are the Adobe's and Apple's: BMD's DaVinci Resolve might end up replacing their post tools. Resolve is amazing.