I don't trust cyclists as far as I could throw them.
The sport has gone down a slippery path for far too long in its quest for ever more futuristic inovations, in the name of so called progress, starting with race radios and then electronic gear switching, to say nothing of the chemical advancements.
It would, therefore, be incredibly naive of me to dismiss outright any possiblity that Cancellara utilized such a machine, simply because of the aparent outlandishness of such a behavior. The means with which cyclists have been overriding the doping controls, would, under "normal" circumstances, seem completely far-fetched too, just as it would seem totally unbelievable that the UCI could have accepted a bribe to cover-up a postive, though how can we take Landis' accusation as mere rubbish.
Mine isn't an affirmation one way or the other, however nothing in cycling, at this point, seems too far-fetched. What a pitiful state has this sport been reduced.
PS. Having just watched the bici dopata segment on the after-stage Giro coverage on u-tube, which actually I hadn't seen before, all I can say is what a mess. Cassani assured the spectators that the person, that remained anonymous, who had presented the "doped" bike to him (but someone obviously affiliated with the pro ranks of the sport) told him that the bike had already been used by some pros. I was also struck by the fact that such a machine has existed since 2004. Six years! I'm speachless...