I give Penny a little more slack here than some will.
To me, once Ken was gone, the chances of any Sook Jai based alliance working was nil. Therefore both Jake and Penny needed to try to forge their own paths.
Penny made a horrible tactical error of trusting the guy (Clay) who seemed to be most responsive, yet had also set her up to vote for Ted last week. Bad decision.
However, if take off the I hate Penny blinders for a moment, I thought Ted's comments were interesting.
He said that basically Penny was gaining influence with Brian and Clay, and it seems that it was his meeting with them before the IC that sealed Penny's doom.
I wouldn't be surprised to learn that Ted demanded a test of loyalty by getting rid of Penny vice Jake, and further, that would mean that some of what Jake said is sticking with him.