I never understood the fascination with the round. It's not a carry friendly round and I don't see it killing a bad guy any more deader than a 9mm +P or a 45ACP.
40SW is for fags though. Like for real.
10mm is a great hunting round in a semi auto. Look up some videos by Razor Dobbs on YouTube. He's taken plenty of large game with a 10mm, including a Cape Buffalo. For carry/SD purposes though, with the bullet technology that we have now it is overkill. I still like the 10mm, just not in an XD.