30 years a go I saw a Bruce Gordon bike (BG's personal ride, IIRC) that goes ya one better:
http://bgcycles.com/pics9.9999991.html
dunno if this is the same bike, but it is the seme concept. In case it isn't clear, there is no seatpost. The saddle clamp is part of the (extended) seat tube. Y'just have to be SURE you've got the right saddle height...
Scott P
Bend, OR
