Do you have any problems with the cable when the fork compresses? Any special measures needed to keep it off the tyre?
I run mine up the right leg, over the fork crown to the other side, then tape it to the disc brake cable. It needs a fairly long wire, but looks a lot neater than having the wire flapping loose up to the handlebars.
This is also my current arrangement, although I use a bIt of spiral cable wrap rather than tape for securing to the hose ( you can also just wrap the wire around the house if you have enough length). Self-adhesive hose guides would be a neat solution to fixing to the lower fork legs, but I just use cable ties.