A:AnswerIt's out in stores, purchased mine a few weeks ago from local Portland, Or store. I had gotten the last one when I was there. It may be that your local bestbuy is out of them or that they don't have the right sku information on file? Would recommend just stopping into one to see what's going on.
A:AnswerIf I understand you right, "to program" you mean by setting sound modes, you need to download turtle beach program for you computer, weather it's windows or mac. After you connect both docking station and headphones you will be able to program it.
A:AnswerIt is fully wireless via transmitter/charging stand. It will connect to the PS3 via bluetooth, not the PS4. There is a USB connection that goes from the PS4 to the charging stand/transmitter that powers the transmitter and makes it wireless, kinda like the USB dongle for the Playstation Gold Headset.
A:AnswerYes it works with Mac OS and PC. You have to put the headset in pairing mode by pressing and holding the bluetooth button on the headset, then you should be able to find it in your computer.