Quote Originally Posted by Saph View Post
What's the source for that? That use definitely isn't in the base description of UMD in the SRD.
Nope. It's actually in a couple of places in Dragon magazines. (You know, that thing that said "100% Official D&DŽ Content" on the front cover.) One instance is in an article regarding Pazuzu and his Blinding Claw throne (major artifact). You can emulate being Pazuzu with a DC 40 Use Magic Device check. See Dragon # 329, page 67. There's also a reference in an adventure in either Dragon or Dungeon, but I can't come up with that source at the moment.