While I don't think ISU will come close to winning in Austin- the talent gulf will always be too big versus the Longhorns- I think we'll see a much closer game than the last two weeks.
Utah and OU had statements to make, and they were clearly motivated to do so. Texas made their statement last week in Lincoln. The Horns are notorious for playing down to the level of their competition, and I can't see them giving their best effort against a team that has been crushed the last two week.
ISU loses, but only by 14 or so.