It is... if you are willing to pay at least $9.95 for a one month subscription (must be cancelled or it rebills).
Iowa State's live events page states that by Big 12 Conference rules, they are not allowed to stream matches that appear on live television for free and the video stream is clearly marked as premium content.
If you want to stream online because you are away from your TV set, you should be able to stream through the PAC12 app on your iPad. But if you want to stream because you cannot get it on your TV, I cannot help you.
[Xfinity has apparently added support for Pac-12.com (which I have verified) and the Pac-12 Networks app (claimed by another poster).]
For any provider, note that you do _NOT_ have to have Pac-12 Bay Area on your cable to watch it online or on your device... if you have any Pac-12 channel in your package, you have access if your cable company provides it (there are a few cable providers that do not have any online authentication, which is required to get at the content... I think San Bruno Municipal Cable was in that boat last year).
Well, they have added Xfinity support on www.pac-12.com, including event streams. I guess that implies they've have the smartphone/tablet support as well. No notice to us... very much unlike the introduction of the Pac-12 Networks on their own Web site and apps.
I think it's been -15 and -18... the second set involved a long run on serve by ISU, which sided out at 24-11.
It's amazing how much easier it is to play with Stanford if one actually tries to block Burgess (which they finally did). Part of the reason that worked as well as it did is that Stanford's passing hasn't been very good. If their passes pull their setter(s) off the net as often against Nebraska as against Iowa State, the Cardinal won't get out of Lincoln with a W.