there's something I have been looking at. I use an Ipad with OnSong and I use a bluetooth page turner. there is an optional add-on to control Lights DMX with your set list. you can set up a different scene with every viewable page. so every timeyou turn the page you can set up a different scene. Then you could set up a wireless network ie: Airport with a usb/dmx hub and control everything from a bluetooth footswitch to turn pages/change scenes.
there are other options like that, and they all use a computer/tablet in some ways. there used to be a DMX controller that had like 4/6 programmable buttons for scene changes in a stompbox format, but I don't remember much more than that.
ALSO: I have a Line6 Pod that can send midi changes, so if you have a Lightboard that can receive midi you could send control that way as well.
good luck!