@anhman, WTF??? My quick hack was to have it request both a door lock and switch state change, the Vera will just tell you there's no implementation if you used an urn that wasn't appropriate for that device ID. I haven't got a clue what's going on....
@iamfd, I've seen the "custom" thing too. I've also seen a weird flashing cursor half way off the screen? Doesn't seem to hurt anything. I've learned to just never say "light" to make Siri happy. Obviously we're finding out Siri + HomeKit still has some bugs to work out, it would be nice if I could use my shiny new Apple Watch but it just tells you to go use your iPhone for HomeKit commands. Sigh. Glad you got it working, and thanks!