Personally, I swing either a 9.5 or 10.5, so a 20 seems incredibly high-lofted, but I'm sure there are SOME people that would benefit from it. I think the main problem is going to be selling people on the idea of a 20* driver...especially men. Even men who don't need it want a stiff shafted driver and lower loft so they can say that's what they swing...not because it best fits their game.
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Texas Wedge
In The Bag:
MacTec NVG2 9.5 deg driver
TaylorMade 200 Steel 3w & 5w
Callaway x-16 Pro Irons
Odyssey White Steel #5 Center Shafted Putter
SkyCaddie SG5
"...I bow to your greater knowledge..." -- Lefty of GRW in response to one of my posts
Winner of three 2007 Golf Rewound Pick Em Contests:
Players Championship, US Open & PGA Championship 
Repeat Champion of the 2008 US Open Pick Em Contest