Cordless traverse curtain rod?

[caheinz]

We finally got drapes for our bedroom, and I got the kind that need to be hung on a traverse rod. I'd prefer to get one where you open and close the drapes with a wand to the usual sort, which uses cords. I've tried looking online, to no avail. I haven't been able to look much in person, but since drapery hardware seems to be a pretty consistent section in the places I have looked, I thought I would ask here to see if anyone had seen this. (Well, seen it for sale somewhere... I've seen such things in lots of hotel rooms!)

Any suggestions or pointers?