Originally Posted by
MezzoLew
As an engineer, I would add that the stiffness of a titanium fork may have been too high and what you want from a front fork (and the rear fork too) is the ability to disperse the forces from a rough road and smooth out the ride. I guess my teeth might fall out if I rode a bike with titanium forks!

I would think that the opposite would be true - the material would not be sufficiently stiff. I'm pretty sure titanium frames are lauded for having excellent resiliency similar to a steel ride. Some stronger riders might consider (earlier) titanium frames to be wet noodles. Titanium seatposts and stems are sometimes spec'd to soften the ride and mute buzzing.
It you type in Wittson into eBay, you will find some frames by Lithuanian custom titanium framebuilder Wittson. He had a several custom titanium forks on there. The road version costs over $1,100. Personally, I think having a titanium fork to go with my Wittson Illuminati titanium compact frame would be super cool.