I'll admit I am gonna be a little trollish here. Why the fixation on a suspended front fork? Would not a decent pair of gloves and grips (either or both) with gel, commbined with improved technique have the same result without the weight penalty or maintenance issues?

I don't know about anyone else here, but if I'm "curb jumping", I am either doing it really slow or going fast enough where my rear wheel touches down first. I cringe at the thought of coming down front wheel first all the time, less control.