Is this legit?
Not yet . That's a screen capture from a DJI video of the intro of the X5 and X5R. The X5R should be shipping shortly in March and the X5/R OSMO adapter soon.
There are like a hundred posts about thisStill no news on the X5 Osmo adaptor though quite a few 3D printed ones are turning up on eBay. Has any one tried one yet?