Springfield Armory has just released its XD-E. I'm guessing that the "E" stands for "external," as in "external hammer." That's purely a guess, though.
At first glance, it looks like a Mod 2 XD-S in 9mm with an exposed hammer:
http://www.springfield-armory.com/xde-features
At first glance, it looks like a Mod 2 XD-S in 9mm with an exposed hammer:
http://www.springfield-armory.com/xde-features