Has anyone checked if a 10mm round fits in the 40 magazine? EAA has this covered, but I'd prefer an XD also. If that hurdle is gotten over, the rest is relatively easy if the likes of Wolff offers stouter springs for the XD and the slide cycles open enough.
A slide/mag conversion kit would be awesome, but 130 sales (I signed the petition as no. 130) would fall very short of making the tooling investment worthwhile. A conversion of the 40, if possible, is a much more viable alternative. And only viable if, and only if, the magazines would work and the slide opens long enough for the 10mm round. If that works, the rest is a simple process of creative machine work.
Folks with 40 XDs, please contact me and I'll send you a 10mm round for a magazine fit check if there is truly that much interest in making the conversion. Or hit up your gun store, my favorite store pulled some 10mm ammo off the shelf for me to check on some 40 cal pistol I can't recall at the moment. It didn't work, suppose that's why I can't recall it.
I'd happily purchase an XD if it seemed feasible. Heck, I purchased a S&W CS40 with that in mind, but more research (after the purchase of course) revealed that alloy frames don't stand up the the 10mm round and the rails wear out in ~1k rounds.