Jaromir Spesny's 26" Author Prototype
(pictures taken at the 2001 UCI World Championships)

The word from Jaromir is that these will be available in Czech by December, and hopefully the rest of the world early next year... Downtube goes from square at the headtube to round at the bottom bracket... Interesting design, and should be very reasonably-priced.

Avid mechanical brakes (he says they work pretty well)

Square stays, Shimano XTR rear derailleur