A guy on reddit posted how he got his already. Unfortunately it came with a letter saying his usb port doesn't work and they are sending him an aux cable. I'll see if I can find the link.
edit:
http://imgur.com/a/P9s7s
That was part of some developer connection thing where they sent out 100 early units to (I believe) students and schools. That's not part of the pre-order frenzy happening now.
Even though it's the dev kit, any reason why general consumers can't get this version? Is the consumer version meant to be cheaper? When is that coming out? What games support it right now? I heard Euro Truck Simulator 2 was working on supporting it.
Along the lines of what Sean said, it does and will have great experiences and some games retrofitted to work (Minecraft, Skyrim, Half Life 2, Euro Truck Simulator for example) but they aren't "perfect" and have some bugs you may have to work around, wouldn't recommend for somebody who doesn't like to get their hands dirty in random .INI files (although I believe HL2 was updated by Valve so should be fine).
Then there are games like Assetto Corsa, Lunar Flight, and some early betas like Elite: Dangerous, Star Citizen that are actually having a display method designed around the Rift although some, like Assetto, have it on their back burner since it's a very small customer base that would have DK2 at this point (pretty much zero at this point, lol).
BUT, then there are 'experiences' like Senza Peso which is a short 'mini opera' and various roller coasters that will be updated shortly (as DK2s get into the developer's hands).
There are also 100 units out there already and I'm sure we'll start seeing the fruits of that labor now that the NDA will be lifted since DK2s are shipping wildly.
Really, it comes down to how much you can tweak game settings and good your PC is. This isn't for the person that just uses Steam in big picture and uses their PC as a "really good console" as it will require getting your hands dirty to get some things to run. The "only" Oculus Rift-only game in development that we know of is Lucky's Tale (platformer) and there are no plans for a demo of that game.
As for release of the CV1 (civilian) - nobody knows, end of 2015 is my guess. I just don't see there being software for 1 million people (their sales goal) there before that unless they are keeping the best kept secrets in gaming (they might be!).
As for price - somewhere around $300-400 would be my guesstimate, they don't want to overprice it and they want mass adoption, anything more than that and it becomes too expensive. They have stated they want it around the DK prices also (which have been about $350.