I hadn't heard that the X3s were coming. With the whole mess that the English X2's release was I ended up not buying one. I should pick one up soon before the X3s come out.
That's because they haven't been officially announced yet, but some toy retailers (I believe the retailer was in Asia just like when the English release for the X1s and X2s got leaked before the official announcement) showed them. I have both Japanese X3s already so I don't need to get them, but the X3 Yellow's US exclusive shell color seems to be referencing Meramon X (Orange with green buttons IIRC) and looks pretty rad.
Speaking of which, I'm only missing the X1 White to have the whole set of 6. I didn't have enough money to get both X1s when they were announced and went with X1 Black because I preferred its roster over X1 White's. Renamon X, Tyranomon X, and Sakuyamon X all being on X1 Black sold me on it... not to mention that the Digimon previously exclusive to X1 White that I wanted ended up on X2s and X3s later anyway (And I got all 4 of those). I did manage to get all 6 Pendulum Zs, though. I
really hope those come over eventually because they combine what's so great about both the Digimon X and the original Pendulums and more people should have the opportunity to check them out.