Maybe cellulosic ethanol is for real?

But corn cob as feed?

Just finished an interesting piece on POET's advances in cellulosic ethanol. In a nutshell production costs have dropped from $4.13 to $2.35, but POET believes they can be further reduced to $2.00 per gallon when commercial production begins.

That's not bad compared to today's gasoline prices. Still, how much feedstock is available for such an application when it is still very corn-intensive? If corn demand goes up, won't these prices eventually go up?